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A179079 Permanent of the n X n matrix whose (i,j)-element is (i+j-1) modulo 3. 3
1, 4, 9, 34, 192, 1032, 6936, 62496, 530712, 5005152, 61710336, 707802624, 8714718720, 133983590400, 1938416832000, 29588291712000, 544216485888000, 9509523337728000, 173318541516288000, 3711395156281344000, 76000261811572224000, 1610876530967703552000, 39351073330327191552000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..23.

Eric Weisstein's World of Mathematics, Permanent

MAPLE

A179079 := proc(n) M := Matrix(n, n, (i, j) -> (i+j-1) mod 3) ; LinearAlgebra[Permanent](M) ; end proc: # R. J. Mathar, Jan 04 2011

MATHEMATICA

Permanent[m_List] := With[{v = Array[x, Length[m]]}, Coefficient[Times @@ (m.v), Times @@ v]]; Table[Permanent[Table[Mod[i+j-1, 3], {i, 1, n}, {j, 1, n}]], {n, 1, 25}]

CROSSREFS

Cf. A010551.

Sequence in context: A149135 A149136 A006392 * A084449 A182144 A182723

Adjacent sequences:  A179076 A179077 A179078 * A179080 A179081 A179082

KEYWORD

nonn

AUTHOR

John W. Layman, Jan 04 2011

STATUS

approved

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Last modified January 18 00:52 EST 2022. Contains 350410 sequences. (Running on oeis4.)