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A112807 as a simple table

n a(n)
0 1
1 1
2 3
3 13
4 66
5 365
6 2132
7 12940
8 80804
9 515776
10 3350165
11 22071930
12 147141469
13 990714900
14 6727506071
15 46020535285
16 316837676938
17 2193700600205
18 15265011340106
19 106699930507346
20 748827090415380
21 5274495878205514

[1,1,3,13,66,365,2132,12940,80804,515776,3350165,
 22071930,147141469,990714900,6727506071,
 46020535285,316837676938,2193700600205,
 15265011340106,106699930507346,748827090415380,
 5274495878205514]

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Last modified June 22 06:28 EDT 2021. Contains 345373 sequences. (Running on oeis4.)