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A235454
as a simple table
n
a(n)
2
1
3
13
4
70
5
290
6
867
7
2266
8
5068
9
10475
10
19764
11
35406
12
59817
13
97375
14
152154
[1,13,70,290,867,2266,5068,10475,19764,35406, 59817,97375,152154]