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 A331826 #19 Jan 28 2020 05:50:09 %S A331826 1,1,2,5,16,60,253,1180,6023,33306,197719,1250906,8387942,59357195, %T A331826 441685485,3444965562,28082207264,238628007349,2108871422308, %U A331826 19343221199365,183810517195168,1806639257820732,18339886099839327,192028550724708334,2071309027341071260 %N A331826 Coefficients in asymptotic expansion of sequence A101880. %H A331826 Vaclav Kotesovec, <a href="/A331826/b331826.txt">Table of n, a(n) for n = 0..64</a> %e A331826 A101880(n) / n! ~ 1 + 1/n + 2/n^2 + 5/n^3 + 16/n^4 + 60/n^5 + 253/n^6 + ... %e A331826 A331517(n) / (exp(-1) * n!) ~ 1 + 1/n + 2/n^2 + 5/n^3 + 16/n^4 + 60/n^5 + 253/n^6 + ... %Y A331826 Cf. A101880, A331517. %K A331826 nonn %O A331826 0,3 %A A331826 _Vaclav Kotesovec_, Jan 28 2020