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A187044 as a simple table

n a(n)
0 1
1 2
2 4
3 9
4 22
5 59
6 170
7 525
8 1716
9 5917
10 21362
11 80533
12 315516
13 1281913
14 5383622
15 23330405
16 104084736
17 477371217
18 2246811730
19 10839493637
20 53528916508
21 270318789249
22 1394426035918
23 7341439399397
24 39413238225512
25 215607783811041

[1,2,4,9,22,59,170,525,1716,5917,21362,80533,
 315516,1281913,5383622,23330405,104084736,
 477371217,2246811730,10839493637,53528916508,
 270318789249,1394426035918,7341439399397,
 39413238225512,215607783811041]

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Last modified January 28 15:20 EST 2022. Contains 350657 sequences. (Running on oeis4.)