# A343440 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 7 5 15 6 27 7 63 8 127 9 255 10 495 11 1023 12 2037 13 4095 14 8127 15 16365 16 32767 17 65535 18 130815 19 262143 20 524265 21 1048509 22 2096127 23 4194303 24 8388477 25 16777215 26 33550335 27 67108863 28 134217657 29 268435455 30 536854005 31 1073741823 32 2147483647 33 4294966269 34 8589869055 35 17179869105