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A141844 a(n) = 4*a(n-1) + A042968(n), with a(0) = 1, where A042968 = "not divisible by 4": (1, 2, 3, 5, 6, 7, 9, 10, 11,...). 1
1, 6, 27, 113, 458, 1839, 7365, 29470, 117891, 471577, 1886322, 7545303, 30181229, 120724935, 482899761, 1931599066, 7726396287 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

EXAMPLE

a(3) = 113 = 4*a(2) + A042968(3) = 4*27 + 5.

CROSSREFS

Cf. A042968.

A288571 is a different sequence that is easily confused with this.

Sequence in context: A220101 A014825 A288571 * A176476 A079742 A291232

Adjacent sequences:  A141841 A141842 A141843 * A141845 A141846 A141847

KEYWORD

nonn,more

AUTHOR

Gary W. Adamson, Jul 11 2008

EXTENSIONS

Incorrect g.f. deleted by Harvey P. Dale and N. J. A. Sloane, Jun 26 2017

STATUS

approved

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Last modified January 24 04:31 EST 2018. Contains 298115 sequences.