Question: In which season and league did the Hellas Verona Football club compete against 21 other teams?

Context articles: Giampaolo Pazzini
A.C. ChievoVerona
2016–17 Serie B
2017–18 Hellas Verona F.C. season
2013–14 Hellas Verona F.C. season
Samuel Souprayen
2014–15 Hellas Verona F.C. season
A Season with Verona
2015–16 Hellas Verona F.C. season
Hellas Verona F.C.

Giampaolo Pazzini (] ; born 2 August 1984 in Pescia), nicknamed "Il Pazzo" (The Madman) by his fans, is an Italian professional footballer who plays as a striker for Hellas Verona and formerly for the Italian national team, representing his nation at the 2010 FIFA World Cup.
 Throughout his club career, he has only played for teams in Italy, previously playing for Atalanta, Fiorentina, Sampdoria, Internazionale and Milan.
 He is well known for his eye for goal and movement off the ball, especially in the penalty area, as well as his excellent ability to score headed goals.
Associazione Calcio Chievo Verona (more commonly known as Chievo Verona or simply Chievo ] ) is an Italian professional football club named after and based in Chievo, a suburb of 4,500 inhabitants in Verona, Veneto, and owned by Paluani, a bakery product company and the inspiration for their original name, Paluani Chievo.
 The club shares the 38,402 seater Marc'Antonio Bentegodi stadium with its cross-town rivals Hellas Verona.
The 2016–17 Serie B (known as the Serie B ConTe.it for sponsorship reasons) was the 85th season since its establishment in 1929.
 A total of 22 teams were contesting the league: 15 returning from the 2015–16 season, 4 promoted from Lega Pro, and 3 relegated from Serie A.
The 2017–18 season is Hellas Verona Football Club's first season back in Serie A following the club's relegation to Serie B at the end of the 2015–16 season.
 Verona earned promotion back to the top-flight after finishing second in the 2016–17 Serie B.
The 2013–14 season was Hellas Verona Football Club's first season in Serie A in eleven years.
 The club finished 10th in Serie A, and were eliminated in the fourth round of the Coppa Italia.
Samuel Souprayen (born 18 February 1989) is a French football player of Réunionais heritage who plays for Italian club Hellas Verona.
 He is a former France youth international having earned caps with the under-18, under-19, under-20, and under-21 teams.
 Souprayen played with the under-20 team at the 2009 Mediterranean Games.
 He plays as a centre back capable of playing on the left side of defense, as well.
The 2014–15 season was Hellas Verona Football Club's second consecutive season in Serie A, after being promoted at the end of the 2012–13 Serie B season.
 The club competed in Serie A, finishing 13th (three places below the previous season's 10th-place finish), and in the Coppa Italia, where they were eliminated in the Round of 16.
A Season With Verona is the title of a 2002 book by Verona based British author Tim Parks.
 It tells the story of a single season following the fortunes of Italian football club Hellas Verona, and deals especially with Parks' relationship with the infamous hard core "Brigate Gialloblù" who make up Verona's travelling support.
 All the matches are detailed as well as many off-field dealings.
 Aside from detailing Hellas Verona's on-the-pitch exploits, Parks provides a commentary of political events in Italy at the time (namely the national election held in 2001 that brought Silvio Berlusconi into power).
 The author also describes the way in which the city of Verona is viewed by other parts of the country, with particular emphasis on the xenophobic reputation the football club and the city of Verona are sometimes characterized with.
The 2015–16 season was Hellas Verona Football Club's third consecutive season in Serie A.
 The club endured an awful league season, failing to win a game until after the halfway point of the season and finishing 20th.
 Meanwhile, the club fared little better in the Coppa Italia, being eliminated by Napoli in the Round of 16.
Hellas Verona Football Club, commonly known simply as Hellas Verona, Verona, or (within the city of Verona itself) Hellas, is a professional Italian football club, based in Verona, Veneto, that currently plays in Serie A.
 The team won the Serie A Championship in 1984–85.