cp's OEIS Frontend

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.

A144893 Second column (m=2) of triangle A144891 (S1hat(5)).

This page as a plain text file.
%I A144893 #6 Jul 04 2023 13:06:35
%S A144893 1,5,55,360,3630,29820,321300,3225600,38808000,466300800,6360379200,
%T A144893 89703936000,1389213504000,22565765376000,394272204480000,
%U A144893 7248941973504000,141496402037760000,2901258659819520000,62617333274496000000,1414755114367795200000,33446554797269053440000
%N A144893 Second column (m=2) of triangle A144891 (S1hat(5)).
%F A144893 a(n) = A144891(n+2,2), n>=0.
%Y A144893 Cf. A144891, A001720 (first column), A144894 (third column).
%K A144893 nonn,easy
%O A144893 0,2
%A A144893 _Wolfdieter Lang_, Oct 09 2008