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A057707
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a(n) is the number of free 'polyominoes' on the (4.8.8) grid with n octagons and n squares.
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1
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OFFSET
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1,2
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COMMENTS
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This sequence enumerates a subset of the polyforms enumerated by A343577. - John Mason, Jan 15 2023
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LINKS
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CROSSREFS
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KEYWORD
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nonn,nice,more
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AUTHOR
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Warren Power (wjpnply(AT)hotmail.com), Oct 24 2000
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EXTENSIONS
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Better description from Larry Reeves (larryr(AT)acm.org), Nov 30 2000
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STATUS
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approved
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