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A221664 as a simple table

n a(n)
1 8
2 64
3 512
4 3772
5 32768
6 262144
7 2097152
8 16777216
9 134140928
10 1073741824
11 8589934592
12 68719476736
13 549755813888
14 4398033385216
15 35184372088832
16 281474976710656
17 2251799813685248
18 18014398509481984
19 144115185909972992

[8,64,512,3772,32768,262144,2097152,16777216,
 134140928,1073741824,8589934592,68719476736,
 549755813888,4398033385216,35184372088832,
 281474976710656,2251799813685248,
 18014398509481984,144115185909972992]

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Last modified January 26 03:23 EST 2022. Contains 350572 sequences. (Running on oeis4.)