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 A371762 #7 Apr 08 2024 18:59:39 %S A371762 1,0,1,0,1,2,0,1,7,6,0,1,19,46,24,0,1,46,251,326,120,0,1,104,1163, %T A371762 3016,2556,720,0,1,225,4831,23283,35848,22212,5040,0,1,473,18523, %U A371762 158531,417148,437228,212976,40320,0,1,976,66886,976636,4285549,7084804,5586444,2239344,362880 %N A371762 Triangle read by rows: the polynomial coefficients of the numerator of the rational solution of the linear recurrence equations of the rows of A371761. %C A371762 Let R(n) = N(n)/D(n) denote the ordinary rational generating function of row n of A371761 as given by its linear recurrence equation. N(n) is the row polynomial Sum_{k=0..n} T(n, k)*x^k and D(n) = Sum_{k=0..n} Stirling1(n+1, n+1-k)*x^k. Thus A371761(n, k) = [x^k] N(n)/D(n). %e A371762 Triangle starts: %e A371762 [0] 1; %e A371762 [1] 0, 1; %e A371762 [2] 0, 1, 2; %e A371762 [3] 0, 1, 7, 6; %e A371762 [4] 0, 1, 19, 46, 24; %e A371762 [5] 0, 1, 46, 251, 326, 120; %e A371762 [6] 0, 1, 104, 1163, 3016, 2556, 720; %e A371762 [7] 0, 1, 225, 4831, 23283, 35848, 22212, 5040; %e A371762 [8] 0, 1, 473, 18523, 158531, 417148, 437228, 212976, 40320; %e A371762 [9] 0, 1, 976, 66886, 976636, 4285549, 7084804, 5586444, 2239344, 362880; %e A371762 . %e A371762 The rational generating function for row 3 of A371761 is: %e A371762 gf = (6*x^3 + 7*x^2 + x)/(-6*x^3 + 11*x^2 - 6*x + 1). %Y A371762 Cf. A029767 (row sums), A000142 (main diagonal), A067318 (subdiagonal). %Y A371762 Cf. A371761. %K A371762 nonn,tabl %O A371762 0,6 %A A371762 _Peter Luschny_, Apr 06 2024