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A128599 as a simple table

n a(n)
1 1
2 3
3 7
4 22
5 43
6 170
7 321
8 1127
9 2816
10 9221
11 16403
12 90121
13 157741
14 475003
15 1377765
16 5194616
17 8925845
18 41509031
19 70873504
20 314321071
21 846062365
22 2349224135
23 3973214615
24 25816158418
25 53403343055
26 145093944173
27 373986049879

[1,3,7,22,43,170,321,1127,2816,9221,16403,90121,
 157741,475003,1377765,5194616,8925845,41509031,
 70873504,314321071,846062365,2349224135,
 3973214615,25816158418,53403343055,145093944173,
 373986049879]

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Last modified April 19 17:46 EDT 2021. Contains 343117 sequences. (Running on oeis4.)