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A189305 as a simple table

na(n)
12
214
373
4400
52177
611854
764554
8351521
91914208
1010423761
1156762346
12309097942
131683185225
149165743600
1549911830577
16271793641686
171480045568402
188059551617921
1943888089440192
20238991507967969
211301422358761490

[2,14,73,400,2177,11854,64554,351521,1914208,
 10423761,56762346,309097942,1683185225,9165743600,
 49911830577,271793641686,1480045568402,
 8059551617921,43888089440192,238991507967969,
 1301422358761490]