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Search: id:A147719
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A147719 A141479(n+1)/3. +0
1
1, 1, 1, 2, 6, 21, 91, 462, 2646, 16841, 117931, 900922, 7456086, 66453661, 634585771, 6463837382, 69955114326, 801626558481, 9696295037611, 123457062745842, 1650499351041366, 23116291464379301, 338474628835617451 (list; graph; listen)
OFFSET

0,4
CROSSREFS

Sequence in context: A150226 A150227 A033540 this_sequence A115089 A001928 A005638

Adjacent sequences: A147716 A147717 A147718 this_sequence A147720 A147721 A147722

KEYWORD

nonn

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Nov 11 2008

EXTENSIONS

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 22 2009

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

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