# A087403 (b-file synthesized from sequence entry) 1 11 2 2221 3 31 4 41 5 555555555551 6 61 7 71 8 881 9 991 10 101 11 1111111111111111111 12 1212121 13 131 14 14141414141 15 151 16 1616161 17 1717171717171717171717171717171 18 181 19 191 20 20201 21 211