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 A141903 #2 Oct 12 2012 14:54:51 %S A141903 1,1,3,1,10,1,1,25,19,3,1,56,126,56,1,1,119,594,614,109,3,1,246,2367, %T A141903 4852,2367,246,1,1,501,8565,31273,31203,8607,487,3,1,1012,29188, %U A141903 176524,312310,176524,29188,1012,1,1,2035,95644,910468,2620582,2620834,910300 %N A141903 A linear combination of A008292 and A130595: t(n,m)=2*A008292(n,m)- A130595(n,m). %C A141903 Row sums are: %C A141903 {1, 4, 12, 48, 240, 1440, 10080, 80640, 725760, 7257600}. %F A141903 t(n,m)=2*A008292(n,m)- A130595(n,m). %e A141903 {1}, %e A141903 {1, 3}, %e A141903 {1, 10, 1}, %e A141903 {1, 25, 19, 3}, %e A141903 {1, 56, 126, 56, 1}, %e A141903 {1, 119, 594, 614, 109, 3}, %e A141903 {1, 246, 2367, 4852, 2367, 246, 1}, %e A141903 {1, 501, 8565, 31273, 31203, 8607, 487, 3}, %e A141903 {1, 1012, 29188, 176524, 312310, 176524, 29188, 1012, 1}, %e A141903 {1, 2035, 95644, 910468, 2620582, 2620834, 910300, 95716, 2017, 3} %t A141903 A[n_, 1] := 1 A[n_, n_] := 1 A[n_, k_] := (n - k + 1)A[n - 1, k - 1] + k A[n - 1, k]; Table[Table[2*A[n, k] - (-1)^(k + 1)*Binomial[n - 1, k - 1], {k, 1, n}], {n, 1, 10}]; Flatten[%] %Y A141903 Cf. A008292 and A130595. %K A141903 nonn,uned %O A141903 1,3 %A A141903 _Roger L. Bagula_ and _Gary W. Adamson_, Sep 14 2008