A156637 Pell numbers A000129 mod 9. Period 24: repeat 0,1,2,5,3,2,7,7,3,4,2,8,0,8,7,4,6,7,2,2,6,5,7,1.

0, 1, 2, 5, 3, 2, 7, 7, 3, 4, 2, 8, 0, 8, 7, 4, 6, 7, 2, 2, 6, 5, 7, 1, 0, 1, 2, 5, 3, 2, 7, 7, 3, 4, 2, 8, 0, 8, 7, 4, 6, 7, 2, 2, 6, 5, 7, 1, 0, 1, 2, 5, 3, 2, 7, 7, 3, 4, 2, 8, 0, 8, 7, 4, 6, 7, 2, 2, 6, 5, 7, 1, 0, 1, 2, 5, 3, 2, 7, 7, 3, 4, 2, 8, 0, 8, 7, 4, 6, 7, 2, 2, 6, 5, 7, 1

Offset

0,3

Links

Table of n, a(n) for n=0..95.

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

Mathematica

PadRight[{}, 120, {0, 1, 2, 5, 3, 2, 7, 7, 3, 4, 2, 8, 0, 8, 7, 4, 6, 7, 2, 2, 6, 5, 7, 1}] (* Harvey P. Dale, Apr 09 2018 *)

Prog

(PARI) a(n)=imag((1+quadgen(8))^n)%9 \\ Charles R Greathouse IV, Jul 13 2016

Crossrefs

Sequence in context: A130848 A222760 A302130 * A195784 A279623 A287040

Adjacent sequences: A156634 A156635 A156636 * A156638 A156639 A156640

Keyword

nonn,easy

Author

Paul Curtz, Feb 12 2009

Extensions

Edited by N. J. A. Sloane, Feb 14 2009

Status

approved