# A249715 (b-file synthesized from sequence entry) 1 0 2 4 3 6 4 13 5 15 6 27 7 47 8 55 9 111 10 223 11 447 12 895 13 1791 14 3583 15 7167 16 14335 17 28671 18 57343 19 114687 20 229375 21 458751 22 917503 23 1835007 24 3670015 25 7340031 26 14680063 27 29360127 28 58720255 29 117440511