# A186418 (b-file synthesized from sequence entry) 0 1 1 4 2 144 3 10000 4 960400 5 112021056 6 14876193024 7 2167749739584 8 338710896810000 9 55880440123393600 10 9629613008027474176 11 1719721549507980904704 12 316402760115623198128384 13 59700436261400947600000000