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A037693 Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,0,3. 1
1, 11, 99, 894, 8047, 72425, 651825, 5866428, 52797853, 475180679, 4276626111, 38489635002, 346406715019, 3117660435173, 28058943916557, 252530495249016, 2272774457241145 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (9,0,0,1,-9).

FORMULA

G.f.: ( x*(1+2*x+3*x^3) ) / ( (x-1)*(9*x-1)*(1+x)*(x^2+1) ). - R. J. Mathar, Oct 11 2015

MATHEMATICA

Module[{nn=20, b9}, b9=PadRight[{}, nn, {1, 2, 0, 3}]; Table[FromDigits[ Take[ b9, n], 9], {n, nn}]] (* Harvey P. Dale, Feb 28 2016 *)

CROSSREFS

Sequence in context: A015671 A190870 A037510 * A098611 A090337 A287196

Adjacent sequences:  A037690 A037691 A037692 * A037694 A037695 A037696

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 5 08:48 EDT 2021. Contains 346464 sequences. (Running on oeis4.)