A074653 1/n * sum over d|n of {mu(n/d) * (5d)! / d!^5}.
120, 56640, 56055960, 76385030400, 124672148625000, 228479027903507520, 453922725503344566840, 957089306644111555200000, 2112293133628003412534448000, 4833477575790121928875488600000
Offset: 1