一般化タクシー数
T a x i c a b ( 1 , 2 , n ) = 2 n = 1 + ( 2 n − 1 ) = 2 + ( 2 n − 2 ) = ⋯ = n + n {\displaystyle \mathrm {Taxicab} (1,2,n)=2n=1+(2n-1)=2+(2n-2)=\cdots =n+n}
T a x i c a b ( 2 , 3 , 2 ) = 27 = 1 2 + 1 2 + 5 2 = 3 2 + 3 2 + 3 2 {\displaystyle \mathrm {Taxicab} (2,3,2)=27=1^{2}+1^{2}+5^{2}=3^{2}+3^{2}+3^{2}}

Taxicab(k,2,2)はA016078をTaxicab(k,3,2)はA230563を参照。