# A293046 (b-file synthesized from sequence entry) 0 0 1 0 2 1 3 1 4 7 5 11 6 31 7 57 8 127 9 247 10 511 11 1013 12 2047 13 4083 14 8191 15 16369 16 32767 17 65519 18 131071 19 262125 20 524287 21 1048555 22 2097151 23 4194281 24 8388607 25 16777191 26 33554431 27 67108837 28 134217727 29 268435427 30 536870911 31 1073741793 32 2147483647 33 4294967263 34 8589934591