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A055586 Sixth column of triangle A055584. 2
1, 10, 59, 268, 1037, 3598, 11535, 34832, 100369, 278546, 749587, 1966100, 5046293, 12714006, 31522839, 77070360, 186122265, 444596250, 1051721755, 2466250780, 5737807901, 13254000670, 30417092639, 69390565408 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..23.

A. F. Y. Zhao, Pattern Popularity in Multiply Restricted Permutations, Journal of Integer Sequences, 17 (2014), #14.10.3.

Index entries for linear recurrences with constant coefficients, signature (10,-41,88,-104,64,-16).

FORMULA

G.f.: 1/(((1-x)^2)*(1-2*x)^4).

a(n) = A055584(n+5, 5). a(n) = sum(a(j), j=0..n-1) + A055582(n), n >= 1.

PROG

(PARI) Vec(1/(((1-x)^2)*(1-2*x)^4) + O(x^40)) \\ Michel Marcus, Dec 11 2015

CROSSREFS

Cf. A055584, partial sums of A027608.

Sequence in context: A045950 A226796 A061001 * A054489 A219580 A267021

Adjacent sequences:  A055583 A055584 A055585 * A055587 A055588 A055589

KEYWORD

easy,nonn

AUTHOR

Wolfdieter Lang, May 26 2000

STATUS

approved

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Last modified October 18 10:27 EDT 2019. Contains 328147 sequences. (Running on oeis4.)