1,2
Ed Pegg, Jr., Illustrations of polyforms
Eric Weisstein's World of Mathematics, Polyedge
Sequence in context: A099487 A166680 A104191 this_sequence A026544 A026527 A037786
Adjacent sequences: A151537 A151538 A151539 this_sequence A151541 A151542 A151543
nonn
Ed Pegg, Jr., (ed(AT)mathpuzzle.com), May 13 2009
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