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 A384591 #7 Jul 02 2025 17:20:54
%S A384591 1,1,2,16,265,12552,1431040,426749895,323397418338,635720375415040,
%T A384591 3236089602490212389,42921641465456435652532,
%U A384591 1485502760348227071906663424,134453761950835461349077548216607,31856917244136936392984483908703780290
%N A384591 a(n) = permanent of the n X n circulant matrix with (row 1) = (F(1), F(2), ..., F(n)), where F = A000045 (Fibonacci numbers).
%t A384591 z = 14;
%t A384591 v[n_] := Table[Fibonacci[k], {k, 1, n}];
%t A384591 u[n_] := Table[RotateRight[#, k - 1], {k, 1, Length[#]}] &[v[n]]
%t A384591 Table[Permanent[u[n]], {n, 1, z}]
%Y A384591 Cf. A000045, A123744 (determinant), A384080, A384313.
%K A384591 nonn
%O A384591 0,3
%A A384591 _Clark Kimberling_, Jun 27 2025