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A006966 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 2
5 5
6 15
7 53
8 222
9 1078
10 5994
11 37622
12 262776
13 2018305
14 16873364
15 152233518
16 1471613387
17 15150569446
18 165269824761
19 1901910625578
20 23003059864006 

[1,1,1,1,2,5,15,53,222,1078,5994,37622,262776,
 2018305,16873364,152233518,1471613387,15150569446,
 165269824761,1901910625578,23003059864006]

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Last modified April 26 01:44 EDT 2024. Contains 371989 sequences. (Running on oeis4.)