A037773 Base 5 digits are, in order, the first n terms of the periodic sequence with initial period 3,1,0,2.

3, 16, 80, 402, 2013, 10066, 50330, 251652, 1258263, 6291316, 31456580, 157282902, 786414513, 3932072566, 19660362830, 98301814152, 491509070763, 2457545353816, 12287726769080, 61438633845402, 307193169227013

Offset

1,1

Links

Table of n, a(n) for n=1..21.

Index entries for linear recurrences with constant coefficients, signature (6,-6,6,-5).

Formula

G.f.: x*(3-2*x+2*x^2) / ( (x-1)*(5*x-1)*(x^2+1) ). - R. J. Mathar, May 02 2015

Mathematica

With[{c=PadLeft[{}, 28, {3, 1, 0, 2}]}, Table[FromDigits[Take[c, n], 5], {n, 25}]] (* Harvey P. Dale, Oct 01 2011 *)

Crossrefs

Sequence in context: A309915 A343117 A055842 * A037661 A372324 A290587

Adjacent sequences: A037770 A037771 A037772 * A037774 A037775 A037776

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved