# A131046 (b-file synthesized from sequence entry) 1 1 2 4 3 11 4 29 5 71 6 168 7 389 8 884 9 1978 10 4375 11 9592 12 20874 13 45124 14 96979 15 207402 16 441724 17 937393 18 1982767 19 4181349 20 8793756 21 18448907 22 38620883 23 80690867 24 168285817 25 350383797 26 728381793 27 1511953441 28 3134224224 29 6489055959 30 13419472021