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A144501 Main diagonal of array in A144502. 1
1, 2, 30, 1633, 198773, 42965211, 14505751627, 7051160946740, 4664901181968498, 4030793305701978223, 4407914679125170417031, 5950921219972964057360847, 9721118017169914469460646225, 18898282608956442548700379478918, 43117198379072165094561711078882078, 114089724623922992953782697056886301761 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

CROSSREFS

Sequence in context: A140174 A089016 A132104 * A198861 A162841 A158260

Adjacent sequences:  A144498 A144499 A144500 * A144502 A144503 A144504

KEYWORD

nonn

AUTHOR

David Applegate and N. J. A. Sloane (njas(AT)research.att.com), Dec 13 2008

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.