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A122871 as a simple table

n a(n)
0 1
1 2
2 7
3 26
4 106
5 452
6 1999
7 9074
8 42046
9 198044
10 945430
11 4564100
12 22243060
13 109285256
14 540738943
15 2692103714
16 13475973238
17 67784600108
18 342439638418
19 1736727343436
20 8839203054604
21 45132514680248
22 231121351433158 

[1,2,7,26,106,452,1999,9074,42046,198044,945430,
 4564100,22243060,109285256,540738943,2692103714,
 13475973238,67784600108,342439638418,
 1736727343436,8839203054604,45132514680248,
 231121351433158]

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Last modified May 23 10:34 EDT 2024. Contains 372760 sequences. (Running on oeis4.)