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A037623 Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 2,0,3. 0
2, 18, 165, 1487, 13383, 120450, 1084052, 9756468, 87808215, 790273937, 7112465433, 64012188900, 576109700102, 5184987300918, 46664885708265, 419983971374387, 3779855742369483 (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 (9,0,1,-9).

FORMULA

G.f.: x*(2+3*x^2) / ( (x-1)*(9*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 29 2015

CROSSREFS

Sequence in context: A005260 A183250 A037728 * A052865 A052883 A052665

Adjacent sequences:  A037620 A037621 A037622 * A037624 A037625 A037626

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 17 00:14 EST 2018. Contains 317275 sequences. (Running on oeis4.)