Least number k >= 0 such that n! + k is a cube.

Terms

a(0) =0a(1) =6a(2) =2a(3) =3a(4) =5a(5) =9a(6) =792a(7) =2555a(8) =10368a(9) =23464a(10) =84888a(11) =1047087a(12) =2483200a(13) =54721675a(14) =228537856a(15) =1394007616a(16) =5090444477a(17) =51286309703a(18) =608427634303