[1,1,2,1,6,6,1,20,90,24,1,70,1680,2520,120,1,252, 34650,369600,113400,720,1,924,756756,63063000, 168168000,7484400,5040,1,3432,17153136, 11732745024,305540235000,137225088000,681080400, 40320,1,12870]