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A015519 as a simple table

n a(n)
0 0
1 1
2 2
3 11
4 36
5 149
6 550
7 2143
8 8136
9 31273
10 119498
11 457907
12 1752300
13 6709949
14 25685998
15 98341639
16 376485264
17 1441362001
18 5518120850
19 21125775707
20 80878397364
21 309637224677
22 1185423230902
23 4538307034543
24 17374576685400

[0,1,2,11,36,149,550,2143,8136,31273,119498,
 457907,1752300,6709949,25685998,98341639,
 376485264,1441362001,5518120850,21125775707,
 80878397364,309637224677,1185423230902,
 4538307034543,17374576685400]

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Last modified June 9 10:42 EDT 2024. Contains 373239 sequences. (Running on oeis4.)