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A277034 as a simple table

n a(n)
1 1
2 2
3 4
4 50
5 268
6 3780
7 28872
8 438410
9 4087180
10 65365260
11 697738072
12 11624944660
13 137432369816
14 2371412517480
15 30441246407440
16 542177876315970
17 7460629909188796
18 136882304192481020
19 2001263659780301080
20 37777108180867675020
21 583057080531893501960
22 11314432259935102732856
23 183452721005994056356272

[1,2,4,50,268,3780,28872,438410,4087180,65365260,
 697738072,11624944660,137432369816,2371412517480,
 30441246407440,542177876315970,7460629909188796,
 136882304192481020,2001263659780301080,
 37777108180867675020,583057080531893501960,
 11314432259935102732856,183452721005994056356272]

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Last modified December 7 18:28 EST 2023. Contains 367660 sequences. (Running on oeis4.)