# A168994 (b-file synthesized from sequence entry) 0 1 1 29 2 812 3 22736 4 636608 5 17825024 6 499100672 7 13974818816 8 391294926848 9 10956257951744 10 306775222648832 11 8589706234167296 12 240511774556684288 13 6734329687587160064 14 188561231252440481792 15 5279714475068333490176