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 A135218 #9 Mar 27 2022 18:26:25 %S A135218 1,1,1,25,25,745,3145,40945,353425,4200625,49949425,666656425, %T A135218 9492440425,145513569625,2378864325625,41355134658625,761412592638625, %U A135218 14800232282598625,302834714220150625 %N A135218 A007318^(-5) * A001286, 5th inverse binomial transform of the Lah numbers. %C A135218 (Note this uses the incorrect offset 0 for A001286. - _R. J. Mathar_, Apr 04 2012) %e A135218 a(3) = (1, -2, 1) dot (1, 6, 36) = (1 - 12 + 36), where A001286 = (1, 6, 36, 240, 1800, ...). %Y A135218 Cf. A001286. %K A135218 nonn %O A135218 0,4 %A A135218 _Gary W. Adamson_, Nov 23 2007