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 A058003 #10 Jul 02 2025 16:02:00 %S A058003 1,5624,64796982,79846389608,20834113243925,1979525296377132, %T A058003 93242242505023122,2625154125717590496,49871029909245781491, %U A058003 694584034909225304800,7525039263469551291908,66252712846754819753160 %N A058003 Number of 5 X 5 matrices with entries mod n, up to row and column permutation. %C A058003 Number of k X l matrices with entries mod n, up to row and column permutation is Z(S_k X S_l; n,n,...) where Z(S_k X S_l; x_1,x_2,...) is cycle index of Cartesian product of symmetric groups S_k and S_l of degree k and l, respectively. %H A058003 Alois P. Heinz, <a href="/A058003/b058003.txt">Table of n, a(n) for n = 1..1000</a> %F A058003 a(n)=(1/5!^2)*(n^25 + 20*n^20 + 100*n^17 + 70*n^15 + 300*n^14 + 225*n^13 + 400*n^12 + 400*n^11 + 100*n^10 + 1600*n^9 + 2300*n^8 + 1300*n^7 + 1200*n^6 + 1824*n^5 + 480*n^4 + 1680*n^3 + 2400*n^2). %Y A058003 Cf. A039623, A058001, A058002, A058004, A002724, A052271, A052272. %Y A058003 Row n=5 of A246106. %K A058003 easy,nonn %O A058003 1,2 %A A058003 _Vladeta Jovovic_, Nov 04 2000 %E A058003 More terms from _James Sellers_, Nov 08 2000