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A244936 as a simple table

na(n)
15
223
3111
4517
52529
612497
760773
8293467
91452027
107098491
1135241785
12173448115
13850635919
144228509605
1520877802955
16102809521997
17511702568833
182533299689123
1912515437416587
2061741060077517
21307496253699899

[5,23,111,517,2529,12497,60773,293467,1452027,
 7098491,35241785,173448115,850635919,4228509605,
 20877802955,102809521997,511702568833,
 2533299689123,12515437416587,61741060077517,
 307496253699899]