# A336819 (b-file synthesized from sequence entry) 1 7 2 15 3 23 4 31 5 63 6 127 7 255 8 511 9 1023 10 2047 11 4095 12 8191 13 16383 14 32767 15 65535 16 131071 17 262143 18 524287 19 1048575 20 2097151 21 4194303 22 8388607 23 16777215 24 33554431 25 67108863 26 134217727 27 268435455 28 536870911 29 1073741823 30 2147483647 31 4294967295 32 8589934591 33 17179869183 34 34359738367 35 68719476735