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A212531 as a simple table

na(n)
11
22
35
410
521
640
783
8161
9331
10644
111102
123627
135646
1410083
1529188
1653681
1784121
18237453
19373114
201400757
212443494

[1,2,5,10,21,40,83,161,331,644,1102,3627,5646,
 10083,29188,53681,84121,237453,373114,1400757,
 2443494]