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A128602 as a simple table

n a(n)
1 1
2 3
3 12
4 60
5 315
6 1869
7 11472
8 74797
9 502908
10 3505031
11 24973089
12 182208083
13 1352620790
14 10207771213
15 78082422354
16 604699597868
17 4733082767467
18 37406134058641
19 298165102770381
20 2395219866441531
21 19376637845028027
22 157757577529194488
23 1291926016200778464

[1,3,12,60,315,1869,11472,74797,502908,3505031,
 24973089,182208083,1352620790,10207771213,
 78082422354,604699597868,4733082767467,
 37406134058641,298165102770381,2395219866441531,
 19376637845028027,157757577529194488,
 1291926016200778464]

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Last modified February 26 14:18 EST 2021. Contains 341632 sequences. (Running on oeis4.)