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 A366361 #11 Oct 08 2023 10:27:05
%S A366361 1,1,16,8343,191379456,243158252171875,20790955151695025307648,
%T A366361 141077987559931565709345896142747,
%U A366361 87560777683393072753972141033294994323013632,5630148253059996156951223684618938659855264355379747814715,41903151415731168301895742189359145224747037005872123307731920000000000000
%N A366361 a(n) is the permanent of the n X n matrix M(n) defined by M[i, j, n] = binomial(n*i, j).
%e A366361 a(3) = 8343:
%e A366361 [3, 3, 1]
%e A366361 [6, 15, 20]
%e A366361 [9, 36, 84]
%t A366361 a[n_]:=Permanent[Table[Binomial[n i,j],{i,n},{j,n}]]; Join[{1},Array[a,10]]
%o A366361 (PARI) a(n) = {matpermanent(matrix(n, n, i, j, binomial(n*i, j)))}; \\ _Vaclav Kotesovec_, Oct 08 2023
%Y A366361 Cf. A023813 (determinant).
%K A366361 nonn
%O A366361 0,3
%A A366361 _Stefano Spezia_, Oct 08 2023