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A213091 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 4
5 11
6 31
7 98
8 317
9 1070
10 3685
11 12928
12 45924
13 164552
14 593398
15 2148288
16 7796846
17 28328601
18 102948125
19 373955584
20 1357252616
21 4921292287
22 17828236695
23 64546901169
24 233660589210
25 846258569786
26 3068523234989
27 11147449003438
28 40600425590874
29 148330067463010

[1,1,1,2,4,11,31,98,317,1070,3685,12928,45924,
 164552,593398,2148288,7796846,28328601,102948125,
 373955584,1357252616,4921292287,17828236695,
 64546901169,233660589210,846258569786,
 3068523234989,11147449003438,40600425590874,
 148330067463010]

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Last modified September 7 13:22 EDT 2024. Contains 375730 sequences. (Running on oeis4.)