A037549 Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,2.

1, 10, 82, 657, 5258, 42066, 336529, 2692234, 21537874, 172302993, 1378423946, 11027391570, 88219132561, 705753060490, 5646024483922, 45168195871377, 361345566971018, 2890764535768146, 23126116286145169, 185008930289161354

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Index entries for linear recurrences with constant coefficients, signature (8,0,1,-8).

Formula

G.f.: x*(1+2*x+2*x^2) / ( (x-1)*(8*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 30 2015

Mathematica

Table[FromDigits[PadRight[{}, n, {1, 2, 2}], 8], {n, 20}] (* or *) LinearRecurrence[ {8, 0, 1, -8}, {1, 10, 82, 657}, 20] (* Harvey P. Dale, Jun 25 2017 *)

Crossrefs

Sequence in context: A362508 A232332 A154246 * A238276 A287825 A199701

Adjacent sequences: A037546 A037547 A037548 * A037550 A037551 A037552

Keyword

nonn,base,easy

Author

Clark Kimberling

Extensions

More terms from Harvey P. Dale, Jun 25 2017

Status

approved