# A080190 (b-file synthesized from sequence entry) 0 2 1 3 2 5 3 7 4 13 5 23 6 43 7 83 8 163 9 317 10 631 11 1259 12 2503 13 5003 14 9973 15 19937 16 39869 17 119617 18 239233 19 480023 20 960031 21 1920049 22 3840091 23 7680181 24 15360361 25 30720719 26 61441379 27 122882741 28 245765449 29 491530873 30 983061713 31 1966123417