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A069657 as a simple table

n a(n)
0 0
1 1
2 2
3 6
4 24
5 115
6 628
7 3818
8 25455
9 183968
10 1428184
11 11824098
12 103794727
13 961461179
14 9360372700
15 95448502365
16 1016413911387
17 11273822075837
18 129950445723958
19 1553488011957986
20 19225242250821071
21 245899882175001580
22 3245812116097119188
23 44155099624566615247

[0,1,2,6,24,115,628,3818,25455,183968,1428184,
 11824098,103794727,961461179,9360372700,
 95448502365,1016413911387,11273822075837,
 129950445723958,1553488011957986,
 19225242250821071,245899882175001580,
 3245812116097119188,44155099624566615247]

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Last modified April 16 01:01 EDT 2024. Contains 371696 sequences. (Running on oeis4.)