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A121057 as a simple table

na(n)
11
23
39
410
550
6250
721
8147
91029
107203
1155
12605
136655
1473205
15805255
1678
171014
1813182
19171366
202227758
2128960854
22136
232312
2439304
25668168
2611358856
27193100552
283282709384
29171
303249
3161731
321172889
3322284891
34423412929
358044845651

[1,3,9,10,50,250,21,147,1029,7203,55,605,6655,
 73205,805255,78,1014,13182,171366,2227758,
 28960854,136,2312,39304,668168,11358856,193100552,
 3282709384,171,3249,61731,1172889,22284891,
 423412929,8044845651]