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A123801 as a simple table

na(n)
11
24
37
431
576
6365
7920
84691
912695
1065708
11184458
12967195
132798734
1414837523
1543829052
16234029147
17703643181

[1,4,7,31,76,365,920,4691,12695,65708,184458,
 967195,2798734,14837523,43829052,234029147,
 703643181]