# A049886 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 2 5 4 6 8 7 16 8 32 9 63 10 127 11 254 12 508 13 1015 14 2028 15 4052 16 8096 17 16176 18 32383 19 64766 20 129532 21 259063 22 518124 23 1036244 24 2072480 25 4144944 26 8289857 27 16579650 28 33159173 29 66318092 30 132635677 31 265270341 32 530538658 33 1061073272 34 2122154639