# A242832 (b-file synthesized from sequence entry) 1 6 2 14 3 15 4 62 5 254 6 511 7 2047 8 16382 9 262142 10 1048574 11 8388607 12 4294967294 13 137438953471 14 562949953421311 15 576460752303423487 16 4611686018427387902 17 147573952589676412927 18 9671406556917033397649407 19 1237940039285380274899124222 20 158456325028528675187087900671