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A052655
a(2) = 6, otherwise a(n) = n*n!.
+0
3
0, 1, 6, 18, 96, 600, 4320, 35280, 322560, 3265920, 36288000, 439084800, 5748019200, 80951270400, 1220496076800, 19615115520000, 334764638208000, 6046686277632000, 115242726703104000, 2311256907767808000
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Maintained by
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njas@research.att.com
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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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