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A054360
Number of polyominoes with n cells that do not tile the plane.
5
0, 0, 0, 0, 0, 0, 4, 26, 235, 1585, 10453, 40151, 199922, 792867, 3146993, 12532362, 49280874, 189564720, 739243108, 2858545267, 11101139486, 43154849550, 167993679964, 654778791594, 2556955750961
OFFSET
1,7
REFERENCES
Posting by Glenn C. Rhoads (rhoads(AT)paul.rutgers.edu) to rec.puzzles, Feb 17 2000.
EXAMPLE
a(7) = 4.
CROSSREFS
KEYWORD
nonn,hard
AUTHOR
Joe Keane (jgk(AT)jgk.org)
EXTENSIONS
Corrected and extended by Joseph Myers, May 05 2002
More terms from Joseph Myers, Nov 04 2003
a(24) and a(25) from Joseph Myers, Nov 17 2010
STATUS
approved