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 A135852 #26 Feb 16 2022 11:03:33 %S A135852 1,3,2,8,4,3,20,6,9,4,48,8,18,16,5,112,10,30,40,25,6,256,12,45,80,75, %T A135852 36,7,576,14,63,140,175,126,49,8,1280,16,84,224,350,336,196,64,9,2816, %U A135852 18,108,336,630,756,588,288,81,10 %N A135852 A007318 * A103516 as a lower triangular matrix. %C A135852 Binomial transform of triangle A103516. %H A135852 G. C. Greubel, <a href="/A135852/b135852.txt">Rows n = 0..50 of the triangle, flattened</a> %F A135852 T(n, k) = (A007318 * A103516)(n, k). %F A135852 T(n, 0) = A001792(n). %F A135852 Sum_{k=0..n} T(n, k) = A099035(n+1). %F A135852 T(n, k) = (k+1)*binomial(n, k), with T(n, 0) = (n+2)*2^(n-1), T(n, n) = n+1. - _G. C. Greubel_, Dec 07 2016 %e A135852 First few rows of the triangle are: %e A135852 1; %e A135852 3, 2; %e A135852 8, 4, 3; %e A135852 20, 6, 9, 4; %e A135852 48, 8, 18, 16, 5; %e A135852 112, 10, 30, 40, 25, 6; %e A135852 256, 12, 45, 80, 75, 36, 7; %e A135852 ... %t A135852 T[n_, k_]:= If[n==0, 1, If[k==0, (n+2)*2^(n-1), (k+1)*Binomial[n, k]]]; %t A135852 Table[T[n, k], {n,0,12}, {k,0,n}]//Flatten (* _G. C. Greubel_, Dec 07 2016 *) %o A135852 (Sage) %o A135852 def A135852(n,k): %o A135852 if (n==0): return 1 %o A135852 elif (k==0): return (n+2)*2^(n-1) %o A135852 else: return (k+1)*binomial(n, k) %o A135852 flatten([[A135852(n,k) for k in (0..n)] for n in (0..12)]) # _G. C. Greubel_, Feb 07 2022 %Y A135852 Cf. A007318, A103516. %Y A135852 Cf. A001792 (1st column), A099035 (row sums). %Y A135852 Cf. A135853 (= A103516 * A007318). %K A135852 nonn,tabl %O A135852 0,2 %A A135852 _Gary W. Adamson_, Dec 01 2007 %E A135852 Offset changed to 0 by _G. C. Greubel_, Feb 07 2022