# A340563 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 16 4 384 5 30976 6 7741440 7 6369316864 8 16435095011328 9 138915523039657984 10 3696387867279360000000 11 321533678904455375050768384 12 88192375153215003517412966400000 13 78996127242669742603293261855977373696 14 223311937686075869460797609709638544686841856