A098134 Number of triangles with corners on the integer lattice Z X Z (up to translations, rotations and reflections), the square of the longest side equal to A001481.

0, 0, 1, 1, 4, 2, 2, 7, 8, 5, 10, 7, 13, 20, 17, 19

Offset: 0

Author

Franz Vrabec, Sep 27 2004

Keywords

• nonn

Examples

			a(3) = 1 because there is only 1 triangle on the integer lattice Z*Z where the square of the longest side is equal to A001481(3) = 4; its a triangle with sides 2, sqrt(2), sqrt(2).