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A215987 as a simple table

n a(n)
7 1
8 1
9 3
10 6
11 13
12 26
13 56
14 115
15 246
16 530
17 1166
18 2613
19 5982
20 13940
21 33073
22 79760
23 195109
24 483615
25 1212485
26 3071358
27 7850690
28 20231286
29 52513864
30 137202595
31 360578812
32 952705531
33 2529454122
34 6745724961
35 18063628118
36 48553319703
37 130962595786
38 354390168855

[1,1,3,6,13,26,56,115,246,530,1166,2613,5982,
 13940,33073,79760,195109,483615,1212485,3071358,
 7850690,20231286,52513864,137202595,360578812,
 952705531,2529454122,6745724961,18063628118,
 48553319703,130962595786,354390168855]

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Last modified April 19 23:40 EDT 2024. Contains 371798 sequences. (Running on oeis4.)