# A077893 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 3 5 3 6 5 7 5 8 11 9 11 10 21 11 21 12 43 13 43 14 85 15 85 16 171 17 171 18 341 19 341 20 683 21 683 22 1365 23 1365