# A034736 (b-file synthesized from sequence entry) 1 1 2 4 3 7 4 17 5 23 6 57 7 77 8 171 9 287 10 581 11 1053 12 2209 13 4133 14 8387 15 16503 16 33145 17 65589 18 131821 19 262205 20 525561 21 1048891 22 2099331 23 4194383 24 8393549 25 16777417 26 33562795 27 67109809 28 134234721 29 268435563 30 536905903 31 1073741937 32 2147550181