# A355023 (b-file synthesized from sequence entry) 8 5040 9 317520 10 12700800 11 419126400 12 12573792000 13 359610451200 14 10069092633600 15 280496151936000 16 7853892254208000 17 222526947202560000 18 6408776079433728000 19 188184970332463104000 20 5645549109973893120000 21 173274930375352565760000 22 5445783526082509209600000 23 175354229539856796549120000