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A071533 Determinant of n X n matrix of form [1 2 3 0 0 0 0 0 0 0 / 2 1 2 3 0 0 0 0 0 0 / 3 2 1 2 3 0 0 0 0 0 / 0 3 2 1 2 3 0 0 0 0 / 0 0 3 2 1 2 3 0 0 0 / 0 0 0 3 2 1 2 3 0 0 / 0 0 0 0 3 2 1 2 3 0 / 0 0 0 0 0 3 2 1 2 3 / 0 0 0 0 0 0 3 2 1 2 / 0 0 0 0 0 0 0 3 2 1]. 0
1, -3, 8, 44, 192, -323, 289, 4641, 10520, 4400, -68280, 484561, 808201, 488157, -2948752, 17408204, 130987992, -65477123, 11580409, 658776561, 9777980240, 8114321600, -39315892560, 138239377921, 475273738801, 1607488031517, -3426809717512, 4583117135564 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..28.

FORMULA

G.f.: x(243x^4+54x^3+3x^2-x+1)/[(1-3x)(1+5x+16x^2+45x^3+81x^4)].

CROSSREFS

Sequence in context: A051763 A074435 A039647 * A000240 A182390 A132103

Adjacent sequences:  A071530 A071531 A071532 * A071534 A071535 A071536

KEYWORD

easy,sign

AUTHOR

Benoit Cloitre, Jun 20 2002

STATUS

approved

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Last modified May 30 08:04 EDT 2020. Contains 334712 sequences. (Running on oeis4.)