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A139397 No definition was provided by the author. 0
1, 7, 58, 521, 4906, 47644 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Arises in two-dimensional dimer problem.

CROSSREFS

Sequence in context: A051816 A015566 A006193 * A194724 A081343 A163048

Adjacent sequences:  A139394 A139395 A139396 * A139398 A139399 A139400

KEYWORD

nonn,obsc

AUTHOR

Paul Federbush (PFED(AT)umich.edu), Jun 11 2008

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