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Search: id:A030032
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A030032 a(n+1)= Sum a(k)a(n-k), k = 0 ... [ n/3 ]. +0
1
1, 1, 1, 1, 2, 3, 5, 10, 18, 33, 66, 127, 244, 506, 1009, 2018, 4229, 8631, 17631, 37265, 77349, 160433, 342807, 720334, 1513791, 3254445, 6902283, 14634519, 31602375, 67522598, 144182089, 312851626 (list; graph; listen)
OFFSET

0,5
CROSSREFS

Cf. A000992.

Sequence in context: A018163 A117222 A081172 this_sequence A002661 A065053 A078715

Adjacent sequences: A030029 A030030 A030031 this_sequence A030033 A030034 A030035

KEYWORD

nonn

AUTHOR

njas

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Last modified September 8 08:06 EDT 2008. Contains 143486 sequences.

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