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 A032433 #19 Jul 09 2022 11:08:20 %S A032433 1,5883948671,1163848723925346,15875718186751193446, %T A032433 67362921649153881472361,150221961163114696686151695, %U A032433 223559382769795167319093086664,252583298644057469403578416269848,234170438234669757816987374536542702,187377221472810770345920109207417275058 %N A032433 Coefficients of Jacobi elliptic function c(10,m). %H A032433 A. Fransen, <a href="http://dx.doi.org/10.1090/S0025-5718-1981-0628708-X">Conjectures on the Taylor series expansion coefficients of the Jacobian elliptic function sn(n,k)</a>, Math. Comp., 37 (1981), 475-497. %F A032433 a(n) = T(2*n+1,0,10) where T(1,0,0) = 1; T(n,i,j) = 0 if i+j < 0 or i+j > n/2; T(2*n,i,j) = (2*j+1) * T(2*n-1,i,j) + (2*i+2) * T(2*n-1,i+1,j-1) + (2*n-2*i-2*j+1) * T(2*n-1,i,j-1), and T(2*n+1,i,j) = (2*i+1) * T(2*n-1,i,j) + (2*j+2) * T(2*n,i-1,j+1) + (2*n-2*i-2*j+2) * T(2*n-1,i-1,j). - _Sean A. Irvine_, Jun 20 2020 %Y A032433 Cf. A060628 (10th lower diagonal). %K A032433 nonn %O A032433 10,2 %A A032433 _Simon Plouffe_ %E A032433 Offset corrected and more terms from _Sean A. Irvine_, Jun 20 2020