A037791 Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 3,2,0,1.

3, 29, 261, 2350, 21153, 190379, 1713411, 15420700, 138786303, 1249076729, 11241690561, 101175215050, 910576935453, 8195192419079, 73756731771711, 663810585945400, 5974295273508603

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

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

Formula

G.f.: x*(3-x+x^2) / ( (x-1)*(9*x-1)*(x^2+1) ). - R. J. Mathar, May 01 2015

Mathematica

Module[{nn=20, d}, d=PadRight[{}, nn, {3, 2, 0, 1}]; Table[FromDigits[ Take[ d, n], 9], {n, nn}]] (* Harvey P. Dale, Sep 19 2012 *)

Crossrefs

Sequence in context: A354402 A135163 A074366 * A037672 A037798 A224754

Adjacent sequences: A037788 A037789 A037790 * A037792 A037793 A037794

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved