Number of right triangles with nonnegative integer coordinates less than or equal to n and one corner at the origin.

A155154

Number of right triangles with nonnegative integer coordinates less than or equal to n and one corner at the origin.

Terms

    a(0) =0a(1) =3a(2) =14a(3) =33a(4) =62a(5) =101a(6) =148a(7) =207a(8) =276a(9) =353a(10) =448a(11) =547a(12) =662a(13) =785a(14) =920a(15) =1067a(16) =1230a(17) =1397a(18) =1586a(19) =1773a(20) =1986a(21) =2205a(22) =2436a(23) =2671a(24) =2940a(25) =3207a(26) =3494a(27) =3787a(28) =4096a(29) =4399

External references