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 A360067 #23 Apr 19 2024 07:11:55 %S A360067 1,0,2,12,2304,898560,4827340800,143219736576000,49230909076930560000, %T A360067 149334225705682285363200000,5482643392499167214520238080000000, %U A360067 2322479608280149573505226859610112000000000,13283541711093841017468807905468592685056000000000000 %N A360067 a(n) = det(M) where M is an n X n matrix with M[i,j] = i^j*(i-j). %F A360067 For n>=1, a(n) = A000178(n-1) * A089064(n). - _Vaclav Kotesovec_, Apr 19 2024 %p A360067 a:= n-> LinearAlgebra[Determinant](Matrix(n, (i,j) -> i^j*(i-j))): %p A360067 seq(a(n), n=0..12); # _Alois P. Heinz_, Jan 25 2023 %t A360067 a[n_] := Det@Table[i^j (i - j), {i, n}, {j, n}]; Table[a[n], {n, 1, 15}] %o A360067 (PARI) a(n) = matdet(matrix(n, n, i, j, i^j*(i-j))); \\ _Michel Marcus_, Jan 24 2023 %o A360067 (Python) %o A360067 from sympy import Matrix %o A360067 def A360067(n): return Matrix(n,n,[i**j*(i-j) for i in range(1,n+1) for j in range(1,n+1)]).det() # _Chai Wah Wu_, Jan 27 2023 %Y A360067 Cf. A060238, A174890, A176005, A176001, A000178, A089064, A152653. %K A360067 nonn %O A360067 0,3 %A A360067 _José María Grau Ribas_, Jan 24 2023