Number of 4 X 4 matrices whose determinant is 1 mod n.

A011786

Number of 4 X 4 matrices whose determinant is 1 mod n.

Terms

    a(0) =1a(1) =20160a(2) =12130560a(3) =660602880a(4) =29016000000a(5) =244552089600

External references