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A207595 as a simple table

na(n)
12
216
390
4441
53915
642025
7292600
81982464
921925800
10268730449
112281109103
1219215781641
13242188032450
143266593546384
1532361595709850
16320442399819025
174434278073813775
1864468102969055809
19723471023371037040

[2,16,90,441,3915,42025,292600,1982464,21925800,
 268730449,2281109103,19215781641,242188032450,
 3266593546384,32361595709850,320442399819025,
 4434278073813775,64468102969055809,
 723471023371037040]