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Search: id:A033505
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A033505 G.f.: 1/(1-3*x-x^2+x^3). +0
3
1, 3, 10, 32, 103, 331, 1064, 3420, 10993, 35335, 113578, 365076, 1173471, 3771911, 12124128, 38970824, 125264689, 402640763, 1294216154, 4160024536, 13371648999, 42980755379, 138153890600, 444070778180, 1427385469761 (list; graph; listen)
OFFSET

0,2
LINKS

N. J. A. Sloane Notes on A030186 and A033505

CROSSREFS

Partial sums of A030186.

Sequence in context: A017935 A134377 A077826 this_sequence A063782 A071718 A134952

Adjacent sequences: A033502 A033503 A033504 this_sequence A033506 A033507 A033508

KEYWORD

nonn

AUTHOR

njas, Feb 13 2002

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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