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A143167 formatted as a simple table:

n a(n)
0 1
1 9
2 111
3 1785
4 35595
5 848925
6 23586255
7 748471185
8 26715409875
9 1059544210725
10 46230843633975
11 2201008238854425
12 113546715232225275
13 6309834090304870125
14 375777507964741257375
15 23876826206710426574625
16 1612323634555365676819875

[1,9,111,1785,35595,848925,23586255,748471185,
 26715409875,1059544210725,46230843633975,
 2201008238854425,113546715232225275,
 6309834090304870125,375777507964741257375,
 23876826206710426574625,
 1612323634555365676819875]

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.


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