Number of matchings in the n-triangular honeycomb rook graph.
A289897
Number of matchings in the n-triangular honeycomb rook graph.
Terms
- a(0) =1a(1) =2a(2) =8a(3) =80a(4) =2080a(5) =158080a(6) =36674560a(7) =28019363840
External references
- oeis: A289897