A023446 a(n) = n-4.

-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, 49, 50, 51, 52, 53, 54

Offset

0,1

Links

Table of n, a(n) for n=0..58.

Tanya Khovanova, Recursive Sequences

Robert G. Wilson v, American English names for the numbers from 0 to 100999 without spaces or hyphens.

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

Formula

From M. F. Hasler, Apr 18 2015: (Start)

a(n) = 2*a(n-1) - a(n-2).

a(n) = -A022960(n).

G.f.: -(4-5*x)/(1-x)^2. (End)

Mathematica

Range[0, 60]-4 (* Harvey P. Dale, Sep 17 2022 *)

Prog

(PARI) a(n)=n-4

Crossrefs

Cf. A256958, A001057, A000027, A001477, A023443, A023444, A023445, A023447, ..., A023482, A022958, ..., A022996.

Sequence in context: A239475 A100802 A022960 * A258447 A066440 A182425

Adjacent sequences: A023443 A023444 A023445 * A023447 A023448 A023449

Keyword

sign,easy

Author

N. J. A. Sloane

Status

approved