# A074154 (b-file synthesized from sequence entry)
1 1
2 64
3 729
4 4096
5 78125
6 279936
7 5764801
8 16777216
9 387420489
10 1000000000
11 25937424601
12 743008370688
13 1792160394037
14 56693912375296
15 129746337890625
16 4503599627370496
17 0
18 374813367582081024
19 0
20 32768000000000000000
21 0