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A221547 as a simple table

n a(n)
0 1
1 1
2 1
3 1
4 2
5 3
6 7
7 15
8 38
9 102
10 291
11 894
12 2881
13 9814
14 35049
15 130827
16 509444
17 2062695
18 8667549
19 37723094
20 169735610
21 788356105
22 3774150884
23 18599067832
24 94236062123
25 490360221092
26 2617839307733
27 14324884376705
28 80274898974872
29 460315751077622
30 2698920189467845

[1,1,1,1,2,3,7,15,38,102,291,894,2881,9814,35049,
 130827,509444,2062695,8667549,37723094,169735610,
 788356105,3774150884,18599067832,94236062123,
 490360221092,2617839307733,14324884376705,
 80274898974872,460315751077622,2698920189467845]

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Last modified May 23 17:39 EDT 2024. Contains 372765 sequences. (Running on oeis4.)