Number of ways to choose 3 points in an n X n X n triangular grid so that they do not form a 2 X 2 X 2 triangle.

A234250

Number of ways to choose 3 points in an n X n X n triangular grid so that they do not form a 2 X 2 X 2 triangle.

Terms

    a(0) =0a(1) =16a(2) =111a(3) =439a(4) =1305a(5) =3240a(6) =7091a(7) =14126a(8) =26154a(9) =45660a(10) =75955a(11) =121341a(12) =187291a(13) =280644a(14) =409815a(15) =585020a(16) =818516a(17) =1124856a(18) =1521159a(19) =2027395a(20) =2666685a(21) =3465616a(22) =4454571a(23) =5668074a(24) =7145150a(25) =8929700a(26) =11070891a(27) =13623561a(28) =16648639a(29) =20213580

External references