# A079857 (b-file synthesized from sequence entry) 0 1 1 3 2 9 3 25 4 71 5 213 6 637 7 1871 8 5439 9 15591 10 43853 11 119603 12 306107 13 694105 14 1253721 15 1481631 16 862893 17 169269 18 6192 19 16