# A105947 (b-file synthesized from sequence entry) 0 1 1 35 2 420 3 2940 4 14700 5 58212 6 194040 7 566280 8 1486485 9 3578575 10 8016008 11 16893240 12 33786480 13 64574160 14 118605600 15 210327264 16 361499985 17 604167795 18 984569740 19 1568220500 20 2446423980 21 3744526500 22 5632263000 23 8336601000 24 12157543125 25 17487410031 26 24834191760