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A252687
as a simple table
n
a(n)
1
46
2
142
3
134
4
1480
5
568
6
18940
7
2592
8
255112
9
12400
10
3480808
11
60728
12
47653672
13
302104
14
653003512
15
1520088
[46,142,134,1480,568,18940,2592,255112,12400, 3480808,60728,47653672,302104,653003512,1520088]