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A069944
Let b(1)=b(2)=1, b(n+2)=(1/(n+1))*(b(n+1)+b(n)); then a(n)=denominator(b(n)).
+0
3
1, 1, 1, 3, 12, 60, 180, 630, 10080, 18144, 453600, 2494800, 59875200, 778377600, 1089728640, 40864824000, 1307674368000, 22230464256000, 15390321408000, 380140938777600, 76028187755520000, 1596591942865920000
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Maintained by
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njas@research.att.com
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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.
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