# A005489 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 1 5 8 6 7 7 32 8 31 9 96 10 97 11 512 12 511 13 2048 14 2047 15 7396 16 7531 17 32768 18 32767 19 131072 20 131071 21 508436 22 512245 23 2097152 24 2097151 25 8202208 26 8207797 27 33256980 28 33335611 29 134217728 30 134217727 31 536870912 32 536870911 33 2142108916 34 2143603741 35 8589928768 36 8589921949