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A175810 as a simple table

n a(n)
1 1
2 2
3 6
4 12
5 52
6 52
7 116
8 232
9 1864
10 1864
11 5960
12 5928
13 15144
14 15144
15 31528
16 63056
17 1008912
18 1008912
19 6199568
20 6199568

[1,2,6,12,52,52,116,232,1864,1864,5960,5928,15144,
 15144,31528,63056,1008912,1008912,6199568,6199568]

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Last modified February 10 23:26 EST 2016. Contains 268159 sequences.