# A049924 (b-file synthesized from sequence entry) 1 1 2 3 3 3 4 6 5 10 6 22 7 42 8 77 9 122 10 285 11 568 12 1129 13 2226 14 4372 15 8298 16 14938 17 23804 18 55905 19 111808 20 223609 21 447186 22 894292 23 1788138 24 3574618 25 7143164 26 14270822 27 28453640 28 56571902 29 111802852 30 218250678 31 415190880 32 747032548 33 1190677068