# A083844 (b-file synthesized from sequence entry) 1 2 2 4 3 10 4 19 5 51 6 112 7 316 8 841 9 2378 10 6656 11 18822 12 54110 13 156081 14 456362 15 1339875 16 3954181 17 11726896 18 34900213 19 104248948 20 312357934 21 938457801 22 2826683630 23 8533327397 24 25814570672 25 78239402726 26 237542444180 27 722354138859 28 2199894223892