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Search: id:A028247
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A028247 Number of T-frame polyominoes with n cells. +0
1
1, 2, 6, 10, 19, 28, 44, 60, 86, 110, 146, 182, 233, 278, 343, 403, 490, 557, 664, 749, 879, 978, 1132, 1237, 1435, 1551, 1771, 1905 (list; graph; listen)
OFFSET

4,2
CROSSREFS

Adjacent sequences: A028244 A028245 A028246 this_sequence A028248 A028249 A028250

Sequence in context: A054273 A127567 A005993 this_sequence A065054 A128165 A097646

KEYWORD

nonn

AUTHOR

Anne Fontaine (fonta(AT)hvcc.edu), Hudson Valley Community College, Troy NY 12180.

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Last modified November 8 20:39 EST 2009. Contains 166234 sequences.

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