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A004276 0, 2, 4 and the odd numbers. 0
0, 1, 2, 3, 4, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 83, 85, 87, 89, 91, 93, 95, 97, 99, 101, 103, 105, 107, 109, 111, 113, 115, 117, 119, 121, 123, 125, 127, 129, 131 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..68.

FORMULA

G.f.: x(1-x^10)/((1-x)^2(1-x^5)); - Paul Barry, Aug 11 2006

Euler transform of length 10 sequence [ 2, 0, 0, 0, 1, 0, 0, 0, 0, -1]. - Michael Somos, Sep 06 2006

MATHEMATICA

Sort[Join[{0, 2, 4}, Range[1, 201, 2]]] (* Harvey P. Dale, Jan 16 2014 *)

PROG

(PARI) {a(n) = if( n<1, 0, n + (n>5) * (n-5))}; /* Michael Somos, Sep 06 2006 */

CROSSREFS

Cf. A004281.

Sequence in context: A026285 A013930 A004281 * A033057 A092755 A032515

Adjacent sequences:  A004273 A004274 A004275 * A004277 A004278 A004279

KEYWORD

easy,nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified June 15 16:13 EDT 2019. Contains 324142 sequences. (Running on oeis4.)