A022977 a(n) = 21-n.

21, 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

Offset

0,1

Links

Table of n, a(n) for n=0..60.

Tanya Khovanova, Recursive Sequences.

Index entries for linear recurrences with constant coefficients, signature (2,-1).

Mathematica

21-Range[0, 60] (* Harvey P. Dale, Sep 05 2023 *)

Crossrefs

Cf. A022958 - A022995.

Sequence in context: A291469 A375459 A105706 * A023463 A382071 A004462

Adjacent sequences: A022974 A022975 A022976 * A022978 A022979 A022980

Keyword

sign

Author

N. J. A. Sloane

Status

approved