A022976 a(n) = 20-n.

20, 19, 18, 17, 16, 15, 14, 13, 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

Offset: 0

Author

N. J. A. Sloane

Keywords

• sign

Links

• Tanya Khovanova, Recursive Sequences.
• Index entries for linear recurrences with constant coefficients, signature (2,-1).

Crossrefs

Cf. A022958 - A022995.

Programs

Mathematica

21-Range[70] (* or *) NestList[#-1&,20,60] (* Harvey P. Dale, Mar 28 2020 *)