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A359706 as a simple table

na(n)
10
21
30
41
51
64
77
831
995
10420
111682
127544
1333288
14152022
15696096
163231001

[0,1,0,1,1,4,7,31,95,420,1682,7544,33288,152022,
 696096,3231001]