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 A277396 #6 Oct 13 2016 04:35:52
%S A277396 1,1,2,7,31,163,979,6556,48150,383219,3275121,29841176,288196506,
%T A277396 2936030427,31425237185,352166075233,4119800015129,50180781755797,
%U A277396 634948818421481,8329111076372852,113065244341635514,1585699911447149109,22942071009006046159
%N A277396 Coefficients in asymptotic expansion of sequence A277175.
%H A277396 Vaclav Kotesovec, <a href="/A277396/b277396.txt">Table of n, a(n) for n = 0..100</a>
%e A277396 A277175(n) / n! ~ 1 + 1/n + 2/n^2 + 7/n^3 + 31/n^4 + 163/n^5 + 979/n^6 + ...
%t A277396 Flatten[{1, Table[Sum[CatalanNumber[j]*StirlingS2[n-1, j-1], {j, 1, n}], {n, 1, 25}]}]
%Y A277396 Cf. A277175.
%K A277396 nonn
%O A277396 0,3
%A A277396 _Vaclav Kotesovec_, Oct 13 2016