# A109277 (b-file synthesized from sequence entry) 1 2 2 2 3 3 4 7 5 13 6 29 7 53 8 109 9 223 10 439 11 881 12 1759 13 3517 14 7039 15 14071 16 28151 17 56299 18 112601 19 225217 20 450413 21 900821 22 1801669 23 3603317 24 7206631 25 14413253 26 28826519 27 57653027 28 115306073 29 230612149 30 461224289 31 922448587 32 1844897167 33 3689794321