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A331608 as a simple table

n a(n)
0 1
1 1
2 3
3 14
4 85
5 632
6 5559
7 56352
8 645929
9 8252352
10 116189291
11 1786361216
12 29764770941
13 534082233856
14 10264484355103
15 210312181051392
16 4575364233983057
17 105310034714202112
18 2556360647841415379
19 65261358332774277120
20 1747713179543456515749

[1,1,3,14,85,632,5559,56352,645929,8252352,
 116189291,1786361216,29764770941,534082233856,
 10264484355103,210312181051392,4575364233983057,
 105310034714202112,2556360647841415379,
 65261358332774277120,1747713179543456515749]

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Last modified July 29 14:43 EDT 2021. Contains 346346 sequences. (Running on oeis4.)