# A372225 (b-file synthesized from sequence entry) 1 1 2 6 3 24 4 105 5 440 6 1872 7 7917 8 33558 9 142120 10 602085 11 2550384 12 10803744 13 45765161 14 193864710 15 821223480 16 3478759473 17 14736260008 18 62423801712 19 264431463285 20 1120149660630 21 4745030096456 22 20100270061581 23 85146110318304 24 360684711374400 25 1527884955751825