# A309159 (b-file synthesized from sequence entry) 0 1 1 2 2 2 3 4 4 10 5 28 6 79 7 235 8 720 9 2254 10 7146 11 22927 12 74137 13 241461 14 790838 15 2603210 16 8604861 17 28549166 18 95027832 19 317229779 20 1061764660 21 3562113987 22 11976146355