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A055381
as a simple table
n
a(n)
1
4
2
9
3
12
4
30
5
30
6
165
7
8021811
8
1071065190
9
1613902650
10
1797595815015
11
633925574060895
12
22930603692243585
[4,9,12,30,30,165,8021811,1071065190,1613902650, 1797595815015,633925574060895,22930603692243585]
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Last modified April 16 01:01 EDT 2024. Contains 371696 sequences. (Running on oeis4.)
