A037498 Base-5 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,2.

1, 5, 27, 136, 680, 3402, 17011, 85055, 425277, 2126386, 10631930, 53159652, 265798261, 1328991305, 6644956527, 33224782636, 166123913180, 830619565902, 4153097829511, 20765489147555, 103827445737777, 519137228688886

Offset

1,2

Links

Table of n, a(n) for n=1..22.

Index entries for linear recurrences with constant coefficients, signature (5,0,1,-5).

Formula

G.f.: x*(1+2*x^2) / ( (x-1)*(5*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 26 2015

Mathematica

Table[FromDigits[PadRight[{}, n, {1, 0, 2}], 5], {n, 30}] (* Harvey P. Dale, May 09 2018 *)

Crossrefs

Sequence in context: A249995 A009027 A275540 * A198771 A084177 A037675

Adjacent sequences: A037495 A037496 A037497 * A037499 A037500 A037501

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved