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A151801 as a simple table

na(n)
12
24
321
4330
514610
61820715
7653629616
8696496706166
92267861968974085
1023151301116946350437
11757490164568070202377310
1280950840941871760357231324684

[2,4,21,330,14610,1820715,653629616,696496706166,
 2267861968974085,23151301116946350437,
 757490164568070202377310,
 80950840941871760357231324684]