Y-coordinate of the first n*n non-coprime block above the line x=y in the first quadrant.

A179594

Y-coordinate of the first n*n non-coprime block above the line x=y in the first quadrant.

Terms

    a(0) =2a(1) =20a(2) =1308a(3) =10199370a(4) =131487690152

External references