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A007309 a(n)=a(n-2)+a(n-3). 0
0, 1, 4, 1, 5, 5, 6, 10, 11, 16, 21, 27, 37, 48, 64, 85, 112, 149, 197, 261, 346, 458, 607, 804, 1065, 1411, 1869, 2476, 3280, 4345, 5756, 7625, 10101, 13381, 17726, 23482, 31107, 41208, 54589, 72315, 95797 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

CROSSREFS

Sequence in context: A021880 A075013 A117379 * A084890 A058662 A133866

Adjacent sequences:  A007306 A007307 A007308 * A007310 A007311 A007312

KEYWORD

nonn

AUTHOR

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

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Last modified February 15 13:16 EST 2012. Contains 205795 sequences.