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A152394 Column 2 of triangle A152391. 4
1, 3, 8, 40, 216, 1386, 9552, 71820, 571440, 4815778, 42465144, 391058720, 3738272328, 37015339410, 378307524768, 3983307781956, 43109512918560, 478808036794306, 5448659044584680, 63446989372749528, 755057167559816440 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Cf. A152391; columns: A152392, A152393; A152395.

Sequence in context: A110561 A107991 A007175 * A168468 A128322 A038048

Adjacent sequences:  A152391 A152392 A152393 * A152395 A152396 A152397

KEYWORD

nonn

AUTHOR

Paul D. Hanna (pauldhanna(AT)juno.com), Dec 11 2008

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Last modified February 14 22:12 EST 2012. Contains 205670 sequences.