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A215796 as a simple table

n a(n)
1 1
2 1
3 2
4 4
5 9
6 20
7 48
8 115
9 283
10 691
11 1681
12 3988
13 9241
14 20681
15 44217
16 89644 

[1,1,2,4,9,20,48,115,283,691,1681,3988,9241,20681,
 44217,89644]

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Last modified May 23 03:55 EDT 2024. Contains 372758 sequences. (Running on oeis4.)