Flan number 2

Flan number 2 (Japanese: フラン数第二形態) is a Flan number coined by Japanese googologist 巨大数大好きbot.巨大数大好きbot, Definition of Flan number 2, twitter.
== Approximations ==
Using Wainer hierarchy, the number is slightly larger and comparable to Bowers' Gongulusquadraplex and Saibian's grand godgathor.
Notation 	Approximation
BEAF 	\(\{5,7,2 (0,1) 2\}\)
Bird's array notation 	\(\{5,7,2 [1,2] 2\}\)
Cascading-E notation 	E[5]5#^#^#5#6
Fast-growing hierarchy	\(f_{\omega^{\omega^{\omega}}}^6(5)\)
Hardy hierarchy 	\(H_{\omega^{\omega^{\omega^{\omega}}}6}(5)\)
Slow-growing hierarchy	\(g_{\vartheta(\Omega^{\Omega^{\Omega}})}(7)\)
== External link ==
* 西宮 七南-解説channel, ゆっくりと学ぶ巨大数論～フラン数第二形態～, YouTube.（A video explaining フラン数第二形態）
== References ==
Category:Numbers
Category:Double exponentiated polynomial omega level
ja:フラン数第二形態