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A120102
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Number of polyominoes consisting of 8 regular unit n-gons.
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8
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66, 369, 2812, 1448, 2876, 10102, 34838, 73675, 181127, 131801, 185297, 352375, 725869, 1180526, 2104485, 1694978, 2123088, 3291481, 5402087, 7739008, 11832175, 10079003, 11917261, 16624712, 24389611, 32317393, 45260884
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OFFSET
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3,1
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LINKS
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EXAMPLE
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a(3)=66 because there are 66 polyiamonds consisting of 8 triangles and a(4)=369 because there are 369 polyominoes consisting of 8 squares.
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CROSSREFS
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Cf. A000577, A000104, A000228, A103465, A103466, A103467, A103468, A103469, A103470, A103471, A103472, A103473, A103465, A120103, A120104.
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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