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 A259168 #4 Jun 19 2015 15:50:20
%S A259168 7,6,13,41,35,38,163,138,253,346,1383,630,4657,3210,5633,9469,20838,
%T A259168 22525,28491,21035,16491,13735,22114,54298,225361,639070,479794,
%U A259168 421883,720634,461055,788446,650762,688229,478126,1465550,1960533,2117157
%N A259168 a(n) = n-th pi-based antiderivative of 7.
%F A259168 a(n) = min { m >= 0 : A258851^n(m) = 7 }.
%Y A259168 Row n=7 of A259016.
%Y A259168 Cf. A000720, A258851.
%K A259168 nonn
%O A259168 0,1
%A A259168 _Alois P. Heinz_, Jun 19 2015