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A370509 as a simple table

n a(n)
0 1
1 1
2 2
3 7
4 28
5 138
6 818
7 5658
8 44784
9 399366
10 3962256
11 43289760
12 516432984
13 6679346280
14 93091875120
15 1390851720840
16 22175338353120
17 375794883339120
18 6745177713093840
19 127830886641354960
20 2550687440585679360
21 53451172032327664560
22 1173650135526055272960

[1,1,2,7,28,138,818,5658,44784,399366,3962256,
 43289760,516432984,6679346280,93091875120,
 1390851720840,22175338353120,375794883339120,
 6745177713093840,127830886641354960,
 2550687440585679360,53451172032327664560,
 1173650135526055272960]

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Last modified September 8 02:36 EDT 2024. Contains 375749 sequences. (Running on oeis4.)