Number of matchings in the n-triangular graph.
A287231
Number of matchings in the n-triangular graph.
Terms
- a(0) =1a(1) =4a(2) =51a(3) =2460a(4) =513619a(5) =509709696
External references
- oeis: A287231
A287231
Number of matchings in the n-triangular graph.