# A070232 (b-file synthesized from sequence entry) 1 4 2 6 3 12 4 24 5 48 6 95 7 190 8 380 9 760 10 1520 11 3040 12 6080 13 12160 14 24320 15 48640 16 97280 17 194560 18 389120 19 778240 20 1556480 21 3112960 22 6225920 23 12451840 24 24903680 25 49807360 26 99614720 27 199229440 28 398458880 29 796917760 30 1593835520 31 3187671040