# A347212 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 6 4 11 5 18 6 36 7 69 8 131 9 258 10 522 11 1025 12 2054 13 4101 14 8194 15 16394 16 32817 17 65542 18 131085 19 262183 20 524313 21 1048588 22 2097164 23 4194310 24 8388624 25 16777218 26 33554433 27 67108881 28 134217730 29 268435473 30 536870927 31 1073741861