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A157072 formatted as a simple table:

n a(n)
1 2
2 138
3 5292
4 142140
5 2947590
6 49858158
7 712832792
8 8832976488
9 96648771870
10 947399938870
11 8416542780492
12 68407265558268
13 512700872216442
14 3567168162771570
15 23172711963346320
16 141251698411654288

[2,138,5292,142140,2947590,49858158,712832792,
 8832976488,96648771870,947399938870,8416542780492,
 68407265558268,512700872216442,3567168162771570,
 23172711963346320,141251698411654288]

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.


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