A131757 Period 10: repeat 3, 3, 3, -7, 3, 3, -7, 3, 3, -7.

3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3, 3, 3, -7, 3, 3, -7, 3, 3, -7, 3

Offset: 0

Author

Paul Curtz, Oct 04 2007

Keywords

• sign
• easy

Links

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

Crossrefs

Cf. A010705, A096915.

Programs

Mathematica

PadRight[{},120,{3,3,3,-7,3,3,-7,3,3,-7}] (* Harvey P. Dale, Aug 07 2018 *)

PARI

a(n)=[3, 3, 3, -7, 3, 3, -7, 3, 3, -7][n%10+1] \\ Charles R Greathouse IV, Jul 13 2016