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A115087 as a simple table

n a(n)
0 1
1 2
2 5
3 21
4 102
5 579
6 3601
7 24426
8 176858
9 1359906
10 10996740
11 93136545
12 821734072
13 7529402477
14 71404315785
15 699210393923
16 7053151126260
17 73158494370744
18 778922147312076
19 8500606925203992
20 94961268583354364
21 1084632255967292304

[1,2,5,21,102,579,3601,24426,176858,1359906,
 10996740,93136545,821734072,7529402477,
 71404315785,699210393923,7053151126260,
 73158494370744,778922147312076,8500606925203992,
 94961268583354364,1084632255967292304]

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Last modified May 14 04:33 EDT 2024. Contains 372528 sequences. (Running on oeis4.)