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 A248871 #12 Mar 15 2015 19:04:04 %S A248871 1,1,3,12,66,450,3679,35260,388511,4844584,67502450,1039929756, %T A248871 17556193609,322321551868,6393505020803,136245752898586, %U A248871 3103879644045050,75268872986970840,1935571325829192247,52605265683008056660,1506530437404419817467 %N A248871 Coefficients in asymptotic expansion of sequence A107895. %H A248871 Vaclav Kotesovec, <a href="/A248871/b248871.txt">Table of n, a(n) for n = 0..212</a> %F A248871 a(k) ~ k! / (4 * (log(2))^(k+1)). %e A248871 A107895(n) / n! ~ 1 + 1/n + 3/n^2 + 12/n^3 + 66/n^4 + 450/n^5 + 3679/n^6 + ... %Y A248871 Cf. A107895, A256124. %K A248871 nonn %O A248871 0,3 %A A248871 _Vaclav Kotesovec_, Mar 14 2015