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A037518 Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 2,0,1. 0
2, 18, 163, 1469, 13221, 118990, 1070912, 9638208, 86743873, 780694859, 7026253731, 63236283580, 569126552222, 5122138969998, 46099250729983, 414893256569849, 3734039309128641 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Index to sequences with linear recurrences with constant coefficients, signature (9,0,1,-9).

FORMULA

G.f. x*(2+x^2) / ( (x-1)*(9*x-1)*(1+x+x^2) ). - R. J. Mathar, Nov 21 2011

CROSSREFS

Sequence in context: A121933 A108550 A144513 * A037721 A005260 A183250

Adjacent sequences:  A037515 A037516 A037517 * A037519 A037520 A037521

KEYWORD

nonn,base

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 16 20:28 EST 2012. Contains 205962 sequences.