# A108915 (b-file synthesized from sequence entry) 1 1 2 2 3 3 4 6 5 12 6 27 7 61 8 142 9 338 10 821 11 2010 12 4967 13 12395 14 31165 15 78821 16 200476 17 512546 18 1316337 19 3394202 20 8784064 21 22809135 22 59407930 23 155162456 24 406294516 25 1066407001 26 2805143797 27 7393812949 28 19525497125 29 51653666339 30 136872356055