Let M_n be the n X n matrix with M_n(i,j)=1/(i+j+1); then a(n)=1/det(M_n).

A069640

Let M_n be the n X n matrix with M_n(i,j)=1/(i+j+1); then a(n)=1/det(M_n).

Terms

    a(0) =3a(1) =240a(2) =378000a(3) =10668672000

External references