Search: id:A028247
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%I A028247
%S A028247 1,2,6,10,19,28,44,60,86,110,146,182,233,278,343,403,490,557,664,
%T A028247 749,879,978,1132,1237,1435,1551,1771,1905
%N A028247 Number of T-frame polyominoes with n cells.
%Y A028247 Sequence in context: A054273 A127567 A005993 this_sequence A065054 A128165 
               A097646
%Y A028247 Adjacent sequences: A028244 A028245 A028246 this_sequence A028248 A028249 
               A028250
%K A028247 nonn
%O A028247 4,2
%A A028247 Anne Fontaine (fonta(AT)hvcc.edu), Hudson Valley Community College, Troy 
               NY 12180.

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