# A136464 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 140 4 18278 5 10187344 6 23427955408 7 219523230207424 8 8342151047514210800 9 1283165334094645437430016 10 797992395974041544979314144000 11 2004526711813925600335978883389492224 12 20319947544434703948516669537695298775460352