# A102927 (b-file synthesized from sequence entry) 1 2 2 6 3 30 4 870 5 9570 6 66990 7 870870 8 32222190 9 547777230 10 43274401170 11 995311226910 12 4109640055911390 13 793160530790898270 14 2056665256340799214110 15 207723190890420720625110