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Search: id:A057766
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A057766 Total area of all n-celled polyominoes. +0
1
1, 2, 6, 20, 60, 210, 756, 2952, 11565, 46550, 187803, 763200, 3101683, 12627594, 51398640, 209268080, 851834453, 3467196936, 14109860408, 57413439000, 233584274238, 950220869136, 3865081177744, 15719992809672, 63930676119100 (list; graph; listen)
OFFSET

1,2

LINKS

Andrew Clarke, Isometric Polyominoes

FORMULA

Equals n*A000105(n).

CROSSREFS

Sequence in context: A081251 A134293 A136883 this_sequence A132353 A052958 A053730

Adjacent sequences: A057763 A057764 A057765 this_sequence A057767 A057768 A057769

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Nov 04 2000

EXTENSIONS

More terms from David Wasserman (dwasserm(AT)earthlink.net), Oct 26 2003

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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