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

0,3

Links

Table of n, a(n) for n=0..55.

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

Formula

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

Mathematica

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

Crossrefs

Cf. A004279.

Sequence in context: A045880 A273011 A032956 * A004279 A274039 A005377

Adjacent sequences: A004269 A004270 A004271 * A004273 A004274 A004275

Keyword

easy,nonn

Author

N. J. A. Sloane

Status

approved