# A280086 (b-file synthesized from sequence entry) 1 1 2 3 3 12 4 252 5 1512 6 217728 7 1741824 8 548674560 9 28531077120 10 9244068986880 11 110928827842560 12 3130855237028413440 13 43831973318397788160 14 25247216631397125980160 15 14542396779684744564572160 16 142006504553621530673047142400 17 2556117081965187552114848563200