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A168594 as a simple table

n a(n)
0 1
1 1
2 3
3 6
4 20
5 70
6 302
7 1386
8 6902
9 35862
10 194202
11 1082642
12 6191680
13 36141118
14 214715244
15 1294849186
16 7911159522
17 48888093910
18 305165808290
19 1921992409066
20 12202404037088
21 78031629139246
22 502263432618224
23 3252160882871210

[1,1,3,6,20,70,302,1386,6902,35862,194202,1082642,
 6191680,36141118,214715244,1294849186,7911159522,
 48888093910,305165808290,1921992409066,
 12202404037088,78031629139246,502263432618224,
 3252160882871210]

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Last modified May 14 07:35 EDT 2024. Contains 372530 sequences. (Running on oeis4.)