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A291773 as a simple table

na(n)
11
21
33
44
57
616
743
8124
9367
101096
113283
129844
1329527
1488576
15265723
16797164
172391487
187174456
1921523363
2064570084
21193710247
22581130736
231743392203
245230176604
2515690529807
2647071589416
27141214768243
28423644304724
291270932914167
303812798742496

[1,1,3,4,7,16,43,124,367,1096,3283,9844,29527,
 88576,265723,797164,2391487,7174456,21523363,
 64570084,193710247,581130736,1743392203,
 5230176604,15690529807,47071589416,141214768243,
 423644304724,1270932914167,3812798742496]