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A131727 Pell numbers A000129 without last digit. 2
1, 2, 7, 16, 40, 98, 237, 574, 1386, 3346, 8078, 19502, 47083, 113668, 274421, 662510, 1599442, 3861396, 9322235, 22505868, 54333972, 131173812, 316681596, 764537004, 1845755605, 4456048214, 10757852035, 25971752284, 62701356604 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,2

LINKS

Table of n, a(n) for n=4..32.

FORMULA

a(n)=(A000129(n)-A131711(n))/10. - R. J. Mathar, Jul 17 2009

MAPLE

A000129 := proc(n) option remember ; if n <= 2 then n ; else 2*A000129(n-1)+A000129(n-2) ; fi ; end: A131727 := proc(n) floor(A000129(n)/10) ; end: seq(A131727(n), n=4..40) ; # R. J. Mathar, Oct 24 2007

CROSSREFS

Sequence in context: A129441 A093971 A065497 * A320236 A073371 A113224

Adjacent sequences:  A131724 A131725 A131726 * A131728 A131729 A131730

KEYWORD

nonn,base

AUTHOR

Paul Curtz, Sep 16 2007, Sep 27 2007

EXTENSIONS

More terms from R. J. Mathar, Oct 24 2007

STATUS

approved

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Last modified December 10 12:22 EST 2019. Contains 329895 sequences. (Running on oeis4.)