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A215796 as a simple table

na(n)
11
21
32
44
59
620
748
8115
9283
10691
111681
123988
139241
1420681
1544217
1689644

[1,1,2,4,9,20,48,115,283,691,1681,3988,9241,20681,
 44217,89644]