A022376 Fibonacci sequence beginning 2, 28.

2, 28, 30, 58, 88, 146, 234, 380, 614, 994, 1608, 2602, 4210, 6812, 11022, 17834, 28856, 46690, 75546, 122236, 197782, 320018, 517800, 837818, 1355618, 2193436, 3549054, 5742490, 9291544, 15034034, 24325578, 39359612, 63685190, 103044802, 166729992, 269774794, 436504786

Offset: 0

Author

N. J. A. Sloane

Keywords

• nonn

Links

• G. C. Greubel, Table of n, a(n) for n = 0..1000
• Tanya Khovanova, Recursive Sequences
• Index entries for linear recurrences with constant coefficients, signature (1, 1).

Crossrefs

Cf. A022104.

Programs

Mathematica

LinearRecurrence[{1,1}, {2,28}, 50] (* G. C. Greubel, Oct 04 2017 *)

PARI

x='x+O('x^50); Vec((2+26*x)/(1-x-x^2)) \\ G. C. Greubel, Oct 04 2017

Formula

G.f.: (2+26*x)/(1-x-x^2). - Philippe Deléham, Nov 19 2008

a(n) = 2 * A022104(n).