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A226880 as a simple table

n a(n)
0 1
1 1
2 3
3 10
4 47
5 246
6 1602
7 11481
8 95503
9 871030
10 8879558
11 58412751
12 473076122
13 3607903547
14 29782240841
15 241773783075
16 2137404383423
17 18482746670342
18 173563010955990
19 1554987178737075
20 15169020662626702
21 126731980207937625
22 1160565179374262951

[1,1,3,10,47,246,1602,11481,95503,871030,8879558,
 58412751,473076122,3607903547,29782240841,
 241773783075,2137404383423,18482746670342,
 173563010955990,1554987178737075,
 15169020662626702,126731980207937625,
 1160565179374262951]

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Last modified May 25 21:44 EDT 2022. Contains 354071 sequences. (Running on oeis4.)