A004272 1, 3, 5 and the nonnegative even numbers.

0, 1, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104

Offset: 0

Author

N. J. A. Sloane

Keywords

• easy
• nonn

Links

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

Crossrefs

Cf. A004279.

Programs

Mathematica

Join[{1,3,5},2*Range[0,60]]//Sort (* Harvey P. Dale, Jul 10 2018 *)

Formula

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