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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.

A384594 a(n) = permanent of the n X n circulant matrix with (row 1) = (F(2), F(3), ..., F(n+1)), where F = A000045 (Fibonacci numbers).

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%I A384594 #7 Jul 14 2025 23:46:23
%S A384594 1,1,5,54,1689,126379,24431584,11866142075,14794067672433,
%T A384594 47379803431959808,392931276153375379253,8465684295123427342668831,
%U A384594 475511457476096446534113500160,69772090836124641206618567332180231,26784700757594331263875776507073783052317
%N A384594 a(n) = permanent of the n X n circulant matrix with (row 1) = (F(2), F(3), ..., F(n+1)), where F = A000045 (Fibonacci numbers).
%t A384594 z = 14;
%t A384594 v[n_] := Table[Fibonacci[k], {k, 2, n + 1}];
%t A384594 u[n_] := Table[RotateRight[#, k - 1], {k, 1, Length[#]}] &[v[n]];
%t A384594 Table[Permanent[u[n]], {n, 1, z}]
%Y A384594 Cf. A000045, A384079, A384595, A384596.
%K A384594 nonn
%O A384594 0,3
%A A384594 _Clark Kimberling_, Jul 10 2025