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A050485
as a simple table
n
a(n)
0
1
1
13
2
76
3
300
4
930
5
2442
6
5676
7
12012
8
23595
9
43615
10
76648
11
129064
12
209508
[1,13,76,300,930,2442,5676,12012,23595,43615, 76648,129064,209508]