# A114251 (b-file synthesized from sequence entry) 0 1 1 50 2 1386 3 30576 4 600600 5 11027016 6 193993800 7 3316739712 8 55588369122 9 918398981500 10 15013703965260 11 243495727020000 12 3925151119562400 13 62976611010020400 14 1006711677146430000 15 16046173576808179200 16 255175067057177767500 17 4050491847815341688760