# A093270 (b-file synthesized from sequence entry)
1 0
2 700
3 77000
4 7770000
5 777700000
6 77777000000
7 7777770000000
8 777777700000000
9 77777777000000000
10 7777777770000000000
11 777777777700000000000
12 77777777777000000000000
13 7777777777770000000000000
14 777777777777700000000000000
15 77777777777777000000000000000