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A222643 as a simple table

na(n)
11
21
33
412
538
6124
7430
81530
95378
1018938
1167042
12238446
13849586
143033214
1510851386
1638895414
17139634834
18502003486
191807104810
206512929766
2123498319154
2284864219966
23306764487338
241109807490550
254018136484386
2614558333191406

[1,1,3,12,38,124,430,1530,5378,18938,67042,238446,
 849586,3033214,10851386,38895414,139634834,
 502003486,1807104810,6512929766,23498319154,
 84864219966,306764487338,1109807490550,
 4018136484386,14558333191406]