# A346220 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 7 4 40 5 321 6 3356 7 45123 8 752256 9 15018433 10 355378732 11 9823042923 12 311510611072 13 11242338245009 14 458052976883672 15 20851748359005567 16 1054108827258438656 17 58860837547461314049 18 3606677286494115444812 19 241397002229305033296603 20 17579096976247770110062080