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A005315 as a simple table

n a(n)
0 1
1 1
2 2
3 8
4 42
5 262
6 1828
7 13820
8 110954
9 933458
10 8152860
11 73424650
12 678390116
13 6405031050
14 61606881612
15 602188541928
16 5969806669034
17 59923200729046
18 608188709574124
19 6234277838531806
20 64477712119584604
21 672265814872772972
22 7060941974458061392

[1,1,2,8,42,262,1828,13820,110954,933458,8152860,
 73424650,678390116,6405031050,61606881612,
 602188541928,5969806669034,59923200729046,
 608188709574124,6234277838531806,
 64477712119584604,672265814872772972,
 7060941974458061392]

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Last modified June 21 21:17 EDT 2018. Contains 305640 sequences. (Running on oeis4.)