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A004275 1 together with nonnegative even numbers. +0
8
0, 1, 2, 4, 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 (list; graph; listen)
OFFSET

0,3

FORMULA

G.f.: x(1+x^2)/(1-x)^2 - Paul Barry (pbarry(AT)wit.ie), Feb 28 2003

CROSSREFS

Cf. A004277.

Sequence in context: A055964 A055966 A087113 this_sequence A119432 A005843 A076032

Adjacent sequences: A004272 A004273 A004274 this_sequence A004276 A004277 A004278

KEYWORD

easy,nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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