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A047051 as a simple table

n a(n)
1 1
2 2
3 4
4 10
5 29
6 98
7 372
8 1538
9 6755
10 30996
11 146982
12 715120
13 3552254
14 17951322
15 92045058
16 477882876
17 2508122859
18 13289437362
19 71010166670
20 382291606570
21 2072025828101
22 11298920776704
23 61954857579594
24 341427364138880

[1,2,4,10,29,98,372,1538,6755,30996,146982,715120,
 3552254,17951322,92045058,477882876,2508122859,
 13289437362,71010166670,382291606570,
 2072025828101,11298920776704,61954857579594,
 341427364138880]

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Last modified June 7 14:59 EDT 2024. Contains 373202 sequences. (Running on oeis4.)