# A068054 (b-file synthesized from sequence entry) 1 2 2 5 3 10 4 23 5 43 6 97 7 183 8 387 9 761 10 1525 11 3070 12 6109 13 12331 14 24570 15 49119 16 98308 17 196634 18 393229 19 786794 20 1573225