# A066007 (b-file synthesized from sequence entry) 1 1 2 19 3 199 4 1099 5 10999 6 109999 7 1099999 8 10999999 9 109999999 10 1099999999 11 10999999999 12 109999999999 13 1099999999999 14 10999999999999 15 100999999999999 16 1009999999999999 17 10099999999999999 18 100999999999999999 19 1009999999999999999 20 10099999999999999999