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A054479
Number of sets of cycle graphs of 2n nodes where the 2-colored edges alternate colors.
+0
2
1, 0, 6, 120, 6300, 514080, 62785800, 10676746080, 2413521910800, 700039083744000, 253445583029839200, 112033456760809584000, 59382041886244720843200, 37175286835046004765120000
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.
AT&T Labs Research
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