A007791 - OEIS

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A007791 as a simple table

n	a(n)
0	1
1	1
2	1
3	16
4	0
5	1
6	1
7	256
8	81
9	0
10	4641
11	16
12	1
13	1
14	0
15	4096
16	1
17	81
18	721
19	0
20	1
21	4641
22	1
23	256
24	78125
25	1
26	6561
27	16

[1,1,1,16,0,1,1,256,81,0,4641,16,1,1,0,4096,1,81, 721,0,1,4641,1,256,78125,1,6561,16]