# A317766 (b-file synthesized from sequence entry) 1 1 2 3 3 5 4 10 5 19 6 40 7 75 8 159 9 310 10 600 11 1117 12 2146 13 4102 14 7866 15 14925 16 28415 17 54123 18 103279 19 196740 20 374715 21 713672 22 1359955 23 2591227 24 4936722 25 9404444 26 17916937 27 34135626 28 65035274