A022968 a(n) = 12-n.
12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11, -12, -13, -14, -15, -16, -17, -18, -19, -20, -21, -22, -23, -24, -25, -26, -27, -28, -29, -30, -31, -32, -33, -34, -35, -36, -37, -38, -39, -40, -41, -42, -43, -44, -45, -46, -47, -48
Offset: 0
Links
- Tanya Khovanova, Recursive Sequences.
- Index entries for linear recurrences with constant coefficients, signature (2,-1).
Programs
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Mathematica
12-Range[0,70] (* Harvey P. Dale, May 19 2019 *)
Formula
G.f.: ( 12-13*x ) / ( (x-1)^2 ). - R. J. Mathar, Aug 26 2015
a(n) = 2*a(n-1)-a(n-2). - Wesley Ivan Hurt, Aug 17 2021