# A076878 (b-file synthesized from sequence entry) 1 0 2 2 3 5 4 12 5 27 6 58 7 121 8 248 9 503 10 1014 11 2037 12 4084 13 8179 14 16370 15 32753 16 65520 17 131055 18 262126 19 524269 20 1048556 21 2097131 22 4194282 23 8388585 24 16777192 25 33554407 26 67108838 27 134217701 28 268435428 29 536870883 30 1073741794 31 2147483617