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A168268 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 3
5 6
6 20
7 45
8 116
9 385
10 2224
11 6396
12 23708
13 88065
14 445784
15 3962502
16 14478825
17 64495508
18 309085415
19 1608099881
20 10856426344
21 142802148953
22 604464533847
23 3324499738872
24 17795211310951
25 112537384959231
26 718232376832560

[1,1,1,2,3,6,20,45,116,385,2224,6396,23708,88065,
 445784,3962502,14478825,64495508,309085415,
 1608099881,10856426344,142802148953,604464533847,
 3324499738872,17795211310951,112537384959231,
 718232376832560]

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Last modified April 18 06:24 EDT 2024. Contains 371769 sequences. (Running on oeis4.)