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A221585 as a simple table

n a(n)
0 1
1 1
2 1
3 3
4 10
5 39
6 170
7 788
8 3885
9 20060
10 107989
11 603762
12 3496305
13 20943217
14 129663393
15 829488918
16 5483243950
17 37460570247
18 264551156875
19 1931501448369
20 14578396143512
21 113720726834349
22 916367532085433
23 7622370642112803
24 65390072935144713
25 577947703151643232

[1,1,1,3,10,39,170,788,3885,20060,107989,603762,
 3496305,20943217,129663393,829488918,5483243950,
 37460570247,264551156875,1931501448369,
 14578396143512,113720726834349,916367532085433,
 7622370642112803,65390072935144713,
 577947703151643232]

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Last modified March 29 04:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)