# A058766 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 6 4 13 5 26 6 55 7 110 8 226 9 456 10 925 11 1862 12 3761 13 7562 14 15223 15 30586 16 61456 17 123362 18 247612 19 496694 20 996199 21 1997294 22 4003747 23 8023886 24 16078346 25 32212256 26 64528069 27 129246720 28 258849061 29 518358122 30 1037951557 31 2078209982 32 4160751616