# A049179 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 9 5 31 6 113 7 431 8 1697 9 6849 10 28181 11 117787 12 498705 13 2134499 14 9220393 15 40146495 16 176011777 17 776363417 18 3442818809 19 15340344035 20 68645684937 21 308365373183 22 1390064360561 23 6286153799119 24 28510001658689