# A131668 (b-file synthesized from sequence entry) 0 1 1 3 2 5 3 7 4 9 5 29 6 49 7 69 8 89 9 199 10 399 11 599 12 799 13 999 14 2999 15 4999 16 6999 17 8999 18 19999 19 39999 20 59999 21 79999 22 99999 23 299999 24 499999 25 699999 26 899999 27 1999999 28 3999999 29 5999999 30 7999999 31 9999999 32 29999999 33 49999999 34 69999999 35 89999999 36 199999999