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A169790
as a simple table
n
a(n)
1
3
2
4
3
10
4
24
5
74
6
444
7
1614
8
15684
9
29400
10
50124
11
259224
12
5332128
13
11110428
14
50395440
15
451174728
16
1296895890
[3,4,10,24,74,444,1614,15684,29400,50124,259224, 5332128,11110428,50395440,451174728,1296895890]
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Last modified June 6 19:21 EDT 2024. Contains 373134 sequences. (Running on oeis4.)