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A296661 as a simple table

n a(n)
0 0
1 1
2 2
3 15
4 60
5 381
6 2286
7 16731
8 133848
9 1211193
10 12111930
11 133290279
12 1599483348
13 20793814965
14 291113409510
15 4366705925619
16 69867294809904
17 1187744054815089
18 21379392986671602
19 406208467134180927
20 8124169342683618540

[0,1,2,15,60,381,2286,16731,133848,1211193,
 12111930,133290279,1599483348,20793814965,
 291113409510,4366705925619,69867294809904,
 1187744054815089,21379392986671602,
 406208467134180927,8124169342683618540]

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Last modified May 15 13:23 EDT 2024. Contains 372540 sequences. (Running on oeis4.)