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A363203 as a simple table

na(n)
11
21
31
42
54
69
720
851
9128
10338
11882
122350
136238
1416693
1544561
16119339
17319104
18854420
192285357

[1,1,1,2,4,9,20,51,128,338,882,2350,6238,16693,
 44561,119339,319104,854420,2285357]