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 A027542 #8 Nov 07 2019 18:20:33 %S A027542 7,52,231,806,2451,6840,18031,45682,112443,270788,641031,1496574, %T A027542 3453859,7893232,17886687,40233578,89908875,199746108,441441655, %U A027542 970971190,2126500467,4638886952,10083091791,21843918306,47177512411,101602798900,218238002151,467614538222 %N A027542 Second diagonal of A027538. %F A027542 Numerators of sequence a[n, n-1] in A=(b[i, j])^3 where b[i, j] = A008292(i, j) / i! if j<=i, 0 if j>i. %K A027542 nonn %O A027542 2,1 %A A027542 _Olivier Gérard_ %E A027542 More terms from _Sean A. Irvine_, Nov 07 2019