# A169208 (b-file synthesized from sequence entry) 0 1 1 3 2 6 3 12 4 24 5 48 6 96 7 192 8 384 9 768 10 1536 11 3072 12 6144 13 12288 14 24576 15 49152 16 98304 17 196608 18 393216 19 786432 20 1572864 21 3145728 22 6291456 23 12582912 24 25165824 25 50331648 26 100663296 27 201326592 28 402653181 29 805306356 30 1610612703 31 3221225388