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 A373397 #56 Jun 04 2024 10:52:14
%S A373397 1,2,3,4,5,7,7,8,9,10,11,14,13,14,15,16,17,21,19,20,21,22,23,28,25,26,
%T A373397 27,28,29,35,31,32,33,34,35,43,37,38,39,40,41,49,43,44,45,46,47,56,49,
%U A373397 50,51,52,53,63,55,56,57,58,59,70,61,62,63,64,65,77,67,68,69,70,71,86,73,74,75,76,77,91
%N A373397 Expansion of Sum_{k>=0} x^(6^k) / (1 - x^(6^k))^2.
%H A373397 Seiichi Manyama, <a href="/A373397/b373397.txt">Table of n, a(n) for n = 1..10000</a>
%F A373397 G.f. A(x) satisfies A(x) = x/(1 - x)^2 + A(x^6).
%F A373397 If n == 0 (mod 6), a(n) = n + a(n/6) otherwise a(n) = n.
%Y A373397 Cf. A129527, A327625, A359099, A359100, A373188.
%Y A373397 Cf. A373216.
%K A373397 nonn
%O A373397 1,2
%A A373397 _Seiichi Manyama_, Jun 04 2024