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A008786 as a simple table

na(n)
01
16
249
3512
46561
5100000
61771561
735831808
8815730721
920661046784
10576650390625
1117592186044416
12582622237229761
1320822964865671168
14799006685782884121
1532768000000000000000
161430568690241985328321
1766249952919459433152512
183244150909895248285300369

[1,6,49,512,6561,100000,1771561,35831808,
 815730721,20661046784,576650390625,17592186044416,
 582622237229761,20822964865671168,
 799006685782884121,32768000000000000000,
 1430568690241985328321,66249952919459433152512,
 3244150909895248285300369]