# A169064 (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 50331645 26 100663284 27 201326559 28 402653100 29 805306164 30 1610612256 31 3221224368