This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A079227 #4 Oct 17 2015 08:36:23 %S A079227 1,1,2,5,14,38,111,332,1029,3232,10374,33679,110722,367252,1228558, %T A079227 4138120,14025473,47792389,163643066,562722427,1942548520,6729230281, %U A079227 23385132060,81503084084,284815902739,997741303308,3503112067273 %N A079227 Number of Catalan objects fixed by six-fold application of the Catalan bijections A057511/A057512 (Deep rotation of general parenthesizations/plane trees). %F A079227 a(n) = A079216(n, 6) %p A079227 A079227 := n -> A079216bi(n,6); %Y A079227 The sixth row of A079216. The leftmost edge of the triangle A079222 and also its row sums shifted by one. Occurs in A073202 as row 170143779648513184865579715159814351615. Cf. A057546, A079223-A079226. %K A079227 nonn %O A079227 0,3 %A A079227 _Antti Karttunen_ Jan 03 2002