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A045990 A034997/2. 0
1, 3, 16, 185, 5646, 533022, 173663176 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A152554 A180721 A192668 * A007006 A174137 A166860

Adjacent sequences:  A045987 A045988 A045989 * A045991 A045992 A045993

KEYWORD

nonn

AUTHOR

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

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Last modified February 17 14:50 EST 2012. Contains 206050 sequences.