# A077486 (b-file synthesized from sequence entry)
1 9
2 81
3 841
4 8649
5 64009
6 0
7 4004001
8 0
9 900000000
10 0
11 40000400001
12 0
13 9000000000000
14 0
15 400000040000001
16 0
17 90000000000000000
18 0
19 4000000004000000001
20 0
21 900000000000000000000
22 0
23 40000000000400000000001