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A037721 Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 2,0,1,3. 0
2, 18, 163, 1470, 13232, 119088, 1071793, 9646140, 86815262, 781337358, 7032036223, 63288326010, 569594934092, 5126354406828, 46137189661453, 415234706953080, 3737112362577722 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..17.

Index entries for linear recurrences with constant coefficients, signature (10,-10,10,-9).

FORMULA

G.f.: ( x*(2-2*x+3*x^2) ) / ( (x-1)*(9*x-1)*(x^2+1) ). - R. J. Mathar, Oct 14 2015

CROSSREFS

Sequence in context: A270369 A144513 A037518 * A245998 A005260 A183250

Adjacent sequences:  A037718 A037719 A037720 * A037722 A037723 A037724

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified September 23 08:18 EDT 2020. Contains 337295 sequences. (Running on oeis4.)