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 A384079 #7 Jun 27 2025 21:57:00 %S A384079 1,0,1,2,34,877,70400,13131404,6425063793,7943767996608, %T A384079 25443254098886314,210703114432644635021,4542702757904484984146944, %U A384079 255390683442241619390980497544,37530368819103589103825830619476133,14431488687735756287625931644915850256384 %N A384079 a(n) = permanent of the n X n circulant matrix with (row 1) = (F(0), F(1), ..., F(n-1)), where F = A000045 (Fibonacci numbers). %t A384079 z = 16; %t A384079 v[n_] := Table[Fibonacci[k], {k, 0, n - 1}]; %t A384079 u[n_] := Table[RotateRight[#, k - 1], {k, 1, Length[#]}] &[v[n]] %t A384079 Table[Simplify[Permanent[u[n]]], {n, 1, z}] %Y A384079 Cf. A000045, A123744 (determinant), A384080. %K A384079 nonn %O A384079 0,4 %A A384079 _Clark Kimberling_, Jun 01 2025 %E A384079 a(0)=1 prepended by _Alois P. Heinz_, Jun 27 2025