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A006989
Log of g.f. of numbers of preferential arrangements.
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1, 0, 2, 4, 34, 196, 1826, 17172, 199074, 2510116, 35862562, 559572916, 9577862306, 177417693636, 3546104002338, 75961485384532, 1737273637523362, 42235881659123812, 1087865420946370082, 29589907884231535860
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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 10 12:37 EST 2009. Contains 170569 sequences.
AT&T Labs Research
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