# A062257 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 8 4 16 5 32 6 64 7 127 8 251 9 496 10 981 11 1940 12 3837 13 7590 14 15015 15 29704 16 58763 17 116249 18 229971 19 454942 20 899991 21 1780410 22 3522102 23 6967611 24 13783703 25 27267665 26 53942368 27 106711708 28 211102869 29 417615105 30 826148769 31 1634332138