1,2
Andrew Clarke, Isometric Polyominoes
Andrew Clarke, Picture from Andrew Clarke's page showing the polyominoes of perimeters 4, 6, 8 and 10.
Cf. A057730.
Adjacent sequences: A057750 A057751 A057752 this_sequence A057754 A057755 A057756
Sequence in context: A084182 A099583 A133479 this_sequence A060515 A109723 A053594
nonn
njas, Nov 04 2000
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