Number of ways to select 3 disjoint point triples from an n X n X n triangular point grid, each point triple forming a 2 X 2 X 2 triangle.

A289224

Number of ways to select 3 disjoint point triples from an n X n X n triangular point grid, each point triple forming a 2 X 2 X 2 triangle.

Terms

    a(0) =0a(1) =4a(2) =82a(3) =670a(4) =3028a(5) =9780a(6) =25574a(7) =57862a(8) =117800a(9) =221268a(10) =390010a(11) =652894a(12) =1047292a(13) =1620580a(14) =2431758a(15) =3553190a(16) =5072464a(17) =7094372a(18) =9743010a(19) =13163998a(20) =17526820a(21) =23027284a(22) =29890102a(23) =38371590a(24) =48762488a(25) =61390900a(26) =76625354a(27) =94877982a(28) =116607820a(29) =142324228

External references