# A278967 (b-file synthesized from sequence entry) 1 2 2 3 3 5 4 7 5 33 6 65 7 17 8 513 9 69 10 16385 11 31 12 262145 13 1025 14 129 15 517 16 67108865 17 536870913 18 1073741825 19 8589934593 20 8449 21 73 22 1027 23 2199023255553 24 89 25 16777217