# A203524 (b-file synthesized from sequence entry) 1 1 2 8 3 960 4 3870720 5 535088332800 6 4746447547269120000 7 2251903055463146166681600000 8 101133031075657891684280256430080000000 9 764075218501479062478490016486870993810227200000000 10 510692344365454233151092604262379676645631378616169267200000000000