# A193662 (b-file synthesized from sequence entry) 0 2 1 1 2 5 3 7 4 25 5 51 6 149 7 351 8 945 9 2347 10 6125 11 15511 12 40009 13 102051 14 262085 15 670287 16 1718625 17 4399771 18 11274269 19 28873351