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A270273
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Array read by antidiagonals: T(n,m) = number of Hamiltonian cycles in C_n X C_m.
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7
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0, 0, 0, 1, 1, 1, 1, 3, 3, 1, 1, 6, 48, 6, 1, 1, 5, 126, 126, 5, 1, 1, 8, 390, 1344, 390, 8, 1, 1, 7, 1014, 2930, 2930, 1014, 7, 1, 1, 10, 2982, 28060, 23580, 28060, 2982, 10, 1, 1, 9, 8094, 55230, 145210, 145210, 55230, 8094, 9, 1
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OFFSET
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1,8
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LINKS
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FORMULA
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EXAMPLE
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The start of the sequence as table:
0 0 1 1 1 1 1 ...
0 1 3 6 5 8 7 ...
1 3 48 126 390 1014 2982 ...
1 6 126 1344 2930 28060 55230 ...
1 5 390 2930 23580 145210 1045940 ...
1 8 1014 28060 145210 3273360 16111928 ...
1 7 2982 55230 1045940 16111928 257165468 ...
...
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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