Number of ways to arrange 5 indistinguishable points on an n X n X n triangular grid so that no three points are collinear at any angle.

A194133

Number of ways to arrange 5 indistinguishable points on an n X n X n triangular grid so that no three points are collinear at any angle.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =39a(4) =792a(5) =7587a(6) =43836a(7) =194013a(8) =696765a(9) =2145687a(10) =5851044a(11) =14546412a(12) =33347130a(13) =71662911a(14) =145616964a(15) =281816991a(16) =522786390a(17) =935155011a(18) =1618729257a(19) =2722297371a(20) =4459330956a(21) =7133246976a(22) =11168002962a(23) =17149002624a(24) =25863493314a(25) =38369771853

External references