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 A099394 #19 Jan 25 2020 02:28:48 %S A099394 1,4,1,16,12,2,64,112,48,6,256,960,800,240,24,1024,7936,11520,6240, %T A099394 1440,120,4096,64512,154112,134400,53760,10080,720,16384,520192, %U A099394 1978368,2612736,1612800,510720,80640,5040,65536,4177920,24780800 %N A099394 Triangle T(k,n) by rows: n! * A075499(k,n). %C A099394 Triangle given by [4,0,8,0,12,0,16,0,20,0,24,0,28,0,...] DELTA [1,1,2,2,3,3,4,4,5,5,6,6,...] where DELTA is the operator defined in A084938. - _Philippe Deléham_, Jun 04 2009 %H A099394 Toufik Mansour, <a href="https://arxiv.org/abs/math/0301157">Generalization of some identities involving the Fibonacci numbers</a>, arXiv:math/0301157 [math.CO], 2003. %F A099394 T(n, k) = A028246(n+1, k+1)*4^(n-k) = Stirling2(n+1, k+1)*k!*4^(n-k), see A008277. - _Philippe Deléham_, Oct 02 2005 %e A099394 Triangle begins: %e A099394 1; %e A099394 4, 1; %e A099394 16, 12, 2; %e A099394 64, 112, 48, 6; %e A099394 256, 960, 800, 240, 24; %e A099394 1024, 7936, 11520, 6240, 1440, 120; %K A099394 nonn,tabl %O A099394 0,2 %A A099394 _Ralf Stephan_, Oct 21 2004