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A319938 as a simple table

n a(n)
1 1
2 1
3 3
4 18
5 165
6 2019
7 30688
8 554784
9 11591649
10 274313325
11 7242994143
12 210931834662
13 6713206636084
14 231754182524900
15 8624280230971980
16 344124280164153056
17 14656294893872323449
18 663624782214112471329
19 31833832291287920426617
20 1612762327644980719082470
21 86050799297228500838101677
22 4823357354919905244973170883
23 283375597845431500054861239512

[1,1,3,18,165,2019,30688,554784,11591649,
 274313325,7242994143,210931834662,6713206636084,
 231754182524900,8624280230971980,
 344124280164153056,14656294893872323449,
 663624782214112471329,31833832291287920426617,
 1612762327644980719082470,
 86050799297228500838101677,
 4823357354919905244973170883,
 283375597845431500054861239512]

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Last modified August 26 23:42 EDT 2024. Contains 375462 sequences. (Running on oeis4.)