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A151519
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Number of 1-sided polytans (polyaboloes) with n cells.
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3
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1, 4, 6, 22, 56, 198, 624, 2182, 7448, 26319, 92826, 332181, 1192845, 4315845, 15678200, 57227380, 209623109, 770516966, 2840466846, 10499678185, 38905008340, 144475534207
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listen;
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text;
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OFFSET
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1,2
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LINKS
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Eric Weisstein's World of Mathematics, Polytan
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CROSSREFS
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KEYWORD
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nonn,hard,more
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AUTHOR
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EXTENSIONS
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a(15) corrected and a(16)-a(20) from John Mason, Jan 07 2022
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STATUS
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approved
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