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A221724 as a simple table

na(n)
11
2306
311733
4544757
524019048
61068474439
747427140282
82106033021852
993510052180466
104152013229849883
11184355733843153070
128185679969358665185
13363456710563714005229
1416138033279951566079150
15716553304870897490539683

[1,306,11733,544757,24019048,1068474439,
 47427140282,2106033021852,93510052180466,
 4152013229849883,184355733843153070,
 8185679969358665185,363456710563714005229,
 16138033279951566079150,716553304870897490539683]