a(n) = det(M) where M is an n X n matrix with M[i,j] = lcm(i,j).
A060238
a(n) = det(M) where M is an n X n matrix with M[i,j] = lcm(i,j).
Terms
- a(0) =1a(1) =1a(2) =-2a(3) =12a(4) =-48a(5) =960a(6) =11520a(7) =-483840a(8) =3870720a(9) =-69672960a(10) =-2786918400a(11) =306561024000
External references
- oeis: A060238