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Search: id:A068552
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| A068552 |
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2n*binomial(2n,n) - 4^n. |
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+0 1
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| -1, 0, 8, 56, 304, 1496, 6992, 31664, 140384, 613016, 2646544, 11325200, 48122528, 203306736, 854829344, 3579783776, 14939605184, 62162742296, 257985394064, 1068242117456, 4414349525024, 18208784215376, 74988168359264, 308369069291936
(list; graph; listen)
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