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A094259 G.f.: (1-5*x)/((1-6*x)*(1-x)^2). 1
1, 3, 11, 55, 315, 1871, 11203, 67191, 403115, 2418655, 14511891, 87071303, 522427771, 3134566575, 18807399395, 112844396311, 677066377803, 4062398266751, 24374389600435, 146246337602535, 877478025615131, 5264868153690703, 31589208922144131, 189535253532864695 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (8,-13,6).

FORMULA

a(n) = (6^(n+1)+20n+19)/25.

CROSSREFS

A row of A094250.

Sequence in context: A259105 A242952 A266027 * A091845 A020061 A125696

Adjacent sequences:  A094256 A094257 A094258 * A094260 A094261 A094262

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jun 02 2004

STATUS

approved

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Last modified November 20 00:42 EST 2017. Contains 294957 sequences.