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A324844 as a simple table

na(n)
11
21
32
43
57
613
732
871
9170
10406
111002
122469
136204
1415644
1539871
16102116
17263325
18682079
191775600
204640220

[1,1,2,3,7,13,32,71,170,406,1002,2469,6204,15644,
 39871,102116,263325,682079,1775600,4640220]