# A175637 (b-file synthesized from sequence entry) 1 1 2 3 3 7 4 9 5 11 6 77 7 111 8 707 9 777 10 909 11 1111 12 7777 13 11111 14 70707 15 77777 16 90909 17 111111 18 777777 19 1111111 20 7070707 21 7777777 22 9090909 23 11111111 24 77777777 25 111111111 26 707070707 27 777777777 28 909090909 29 1111111111 30 7777777777 31 11111111111