Number of ways to select 4 disjoint point triples from an n X n X n triangular point grid, each point triple forming a 2 X 2 X 2 triangle.
A289225
Number of ways to select 4 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) =13a(2) =859a(3) =9585a(4) =56520a(5) =231635a(6) =749223a(7) =2051819a(8) =4965960a(9) =10924065a(10) =22268395a(11) =42654733a(12) =77575104a(13) =135020535a(14) =226306535a(15) =367085655a(16) =578573168a(17) =889013589a(18) =1335417435a(19) =1965599305a(20) =2840550040a(21) =4037177403a(22) =5651451399a(23) =7801992035a(24) =10634139000a(25) =14324544425a(26) =19086331563
External references
- oeis: A289225