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A220330 as a simple table

n a(n)
1 1
2 12
3 92
4 572
5 4062
6 29467
7 213225
8 1540686
9 11163495
10 80656708
11 581473349
12 4190483128
13 30199355040
14 217538559602
15 1566825952174
16 11283025994195
17 81236036737903
18 584831754731217
19 4210022381269251
20 30304818855812080

[1,12,92,572,4062,29467,213225,1540686,11163495,
 80656708,581473349,4190483128,30199355040,
 217538559602,1566825952174,11283025994195,
 81236036737903,584831754731217,4210022381269251,
 30304818855812080]

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Last modified December 2 13:03 EST 2023. Contains 367517 sequences. (Running on oeis4.)