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 A082033 #13 Sep 08 2022 08:45:09 %S A082033 1,4,14,60,312,1920,13680,110880,1008000,10160640,112492800, %T A082033 1357171200,17723059200,249080832000,3748666521600,60153020928000, %U A082033 1025216704512000,18495746260992000,352130553815040000,7055415823712256000 %N A082033 a(n) = (3n+1)*n!. %C A082033 A row of the number array A082037. %H A082033 Vincenzo Librandi, <a href="/A082033/b082033.txt">Table of n, a(n) for n = 0..100</a> %H A082033 Luis Manuel Rivera, <a href="http://arxiv.org/abs/1406.3081">Integer sequences and k-commuting permutations</a>, arXiv preprint arXiv:1406.3081, 2014 %F A082033 a(n) = A016777(n)*n!. %F A082033 3*a(n) +(-3*n-5)*a(n-1) +2*(n-1)*a(n-2)=0. - _R. J. Mathar_, Oct 29 2014 %o A082033 (Magma) [(3*n+1)*Factorial(n): n in [0..20]]; // _Vincenzo Librandi_, May 09 2011 %Y A082033 Cf. A007680, A082034. %K A082033 easy,nonn %O A082033 0,2 %A A082033 _Paul Barry_, Apr 02 2003