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A218921 as a simple table

n a(n)
0 1
1 1
2 3
3 9
4 44
5 101
6 523
7 1195
8 6751
9 16986
10 87884
11 248635
12 1709781
13 4665651

[1,1,3,9,44,101,523,1195,6751,16986,87884,248635,
 1709781,4665651]

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Last modified September 25 12:38 EDT 2021. Contains 347654 sequences. (Running on oeis4.)