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A002072 formatted as a simple table:

n a(n)
2 1
3 8
4 80
5 4374
6 9800
7 123200
8 336140
9 11859210
10 11859210
11 177182720
12 1611308699
13 3463199999
14 63927525375
15 421138799639
16 1109496723125
17 1453579866024
18 20628591204480
19 31887350832896
20 31887350832896
21 119089041053696
22 2286831727304144
23 2286831727304144
24 17451620110781856
25 166055401586083680
26 166055401586083680

[1,8,80,4374,9800,123200,336140,11859210,11859210,
 177182720,1611308699,3463199999,63927525375,
 421138799639,1109496723125,1453579866024,
 20628591204480,31887350832896,31887350832896,
 119089041053696,2286831727304144,2286831727304144,
 17451620110781856,166055401586083680,
 166055401586083680]

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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