# A169969 (b-file synthesized from sequence entry) 1 1 2 3 3 5 4 7 5 11 6 13 7 21 8 27 9 43 10 53 11 85 12 107 13 171 14 213 15 341 16 427 17 683 18 853 19 1365 20 1707 21 2731 22 3413 23 5461 24 6827 25 10923 26 13653 27 21845 28 27307 29 43691 30 54613 31 87381 32 109227 33 174763 34 218453 35 349525 36 436907 37 699051 38 873813 39 1398101 40 1747627 41 2796203 42 3495253