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A337958 as a simple table

na(n)
11
215
3126
4700
52850
69261
725480
861776
9135675
10275275
11523446
12943020
131623076
142686425
154298400
166677056
1710104885
1814942151
1921641950
2030767100
2143008966
2259208325
2380378376
24107730000
25142699375
26186978051
27242545590

[1,15,126,700,2850,9261,25480,61776,135675,275275,
 523446,943020,1623076,2686425,4298400,6677056,
 10104885,14942151,21641950,30767100,43008966,
 59208325,80378376,107730000,142699375,186978051,
 242545590]