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A068416 Number of partitionings of n X n checkerboard into two edgewise-connected sets. +0
1
0, 6, 53, 627, 16213, 1123743 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A055973 A066357 A109092 this_sequence A145003 A097645 A153333

Adjacent sequences: A068413 A068414 A068415 this_sequence A068417 A068418 A068419

KEYWORD

nonn

AUTHOR

Ron Hardin (rhhardin(AT)att.net), Mar 02 2002

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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