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 A260913 #6 Aug 04 2015 04:56:34 %S A260913 1,-1,-1,1,30,404,5379,76021,1155805,18931873,333434490,6295452542, %T A260913 127007655461,2729179670279,62275740709651,1504740573206497, %U A260913 38398859322225738,1032354879165190692,29174916098556605939,864859538577015162053,26840211278794388530737 %N A260913 Coefficients in asymptotic expansion of sequence A059439. %H A260913 Vaclav Kotesovec, <a href="/A260913/b260913.txt">Table of n, a(n) for n = 0..108</a> %F A260913 Conjecture: a(k) ~ k * k! / (4 * (log(2))^(k+2)). %e A260913 A059439(n)/(2*(n-1)!) ~ 1 - 1/n - 1/n^2 + 1/n^3 + 30/n^4 + 404/n^5 + 5379/n^6 + ... %Y A260913 Cf. A059439, A003319, A260503. %K A260913 sign %O A260913 0,5 %A A260913 _Vaclav Kotesovec_, Aug 04 2015