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 A305275 #13 Aug 18 2018 08:53:47 %S A305275 1,0,2,6,35,256,2187,21620,243947,3098528,43799819,682540780, %T A305275 11630529643,215190967544,4296657514283,92083313483300, %U A305275 2108244638675035,51350077108834832,1325682930813985547,36157047428501464220,1038793351537388253211,31354977545074731373512 %N A305275 Coefficients in asymptotic expansion of sequence A302557. %H A305275 Vaclav Kotesovec, <a href="/A305275/b305275.txt">Table of n, a(n) for n = 0..75</a> %F A305275 a(k) ~ k! / (2 * exp(1) * (log(2))^(k+1)). %e A305275 A302557(n) / (exp(-1) * n!) ~ 1 + 2/n^2 + 6/n^3 + 35/n^4 + 256/n^5 + 2187/n^6 + ... %Y A305275 Cf. A256168, A260491, A260503, A260530, A260532, A260578, A260948, A260949, A260950, A302557. %K A305275 nonn %O A305275 0,3 %A A305275 _Vaclav Kotesovec_, Aug 18 2018