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A261060 as a simple table

n a(n)
1 1
2 0
3 2
4 1
5 9
6 22
7 38
8 143
9 676
10 1815
11 7434
12 22452
13 87485
14 290873
15 1092072
16 3894381
17 13988849
18 49672279
19 184745525
20 677809709
21 2495632892
22 9260315018
23 34280441347
24 127419049587
25 474867366809
26 1781565475308
27 6700749901259
28 25230023849115
29 95215110677472

[1,0,2,1,9,22,38,143,676,1815,7434,22452,87485,
 290873,1092072,3894381,13988849,49672279,
 184745525,677809709,2495632892,9260315018,
 34280441347,127419049587,474867366809,
 1781565475308,6700749901259,25230023849115,
 95215110677472]

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Last modified April 20 00:03 EDT 2024. Contains 371798 sequences. (Running on oeis4.)