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A057642 as a simple table

na(n)
11
25
328
41284
53126
66485292
7823544
821541946368
910847773719
10156290000012500
11285311670612
1214847746691430172786688
13302875106592254
1445756121633729931379676
1538327538543365478600000
16397378771500072999738379599872
17827240261886336764178

[1,5,28,1284,3126,6485292,823544,21541946368,
 10847773719,156290000012500,285311670612,
 14847746691430172786688,302875106592254,
 45756121633729931379676,38327538543365478600000,
 397378771500072999738379599872,
 827240261886336764178]