# A132109 (b-file synthesized from sequence entry) 0 1 1 3 2 7 3 14 4 26 5 47 6 85 7 156 8 292 9 557 10 1079 11 2114 12 4174 13 8283 14 16489 15 32888 16 65672 17 131225 18 262315 19 524478 20 1048786 21 2097383 22 4194557 23 8388884 24 16777516 25 33554757 26 67109215 27 134218106 28 268435862 29 536871347 30 1073742289 31 2147484144