A022974 a(n) = 18-n.

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, -41, -42

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).

Formula

a(n) = 2*a(n-1) - a(n-2). - Wesley Ivan Hurt, Mar 15 2023

Mathematica

18-Range[0, 60] (* Harvey P. Dale, Jan 15 2012 *)

Crossrefs

Cf. A022958 - A022995.

Sequence in context: A375675 A074972 A118511 * A023460 A029926 A070742

Adjacent sequences: A022971 A022972 A022973 * A022975 A022976 A022977

Keyword

sign

Author

N. J. A. Sloane

Status

approved