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Search: id:A139754
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A139754 a(n) = floor(n*2*(3^n-2^n)/2^n). +0
1
1, 5, 14, 32, 65, 124, 225, 394, 673, 1133, 1880, 3089, 5034, 8146, 13106, 20986, 33464, 53168, 84201, 132970, 209449, 329156, 516200, 807989, 1262508, 1969539, 3067962, 4772414, 7414316, 11505003 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Adjacent sequences: A139751 A139752 A139753 this_sequence A139755 A139756 A139757

Sequence in context: A101648 A070134 A064412 this_sequence A036595 A053209 A014302

KEYWORD

easy,nonn

AUTHOR

Ctibor O. Zizka (ctibor.zizka(AT)seznam.cz), May 19 2008

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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