Number of (n+2)X(n+2) symmetric binary matrices without the pattern 1 0 1 diagonally.
A190604
Number of (n+2)X(n+2) symmetric binary matrices without the pattern 1 0 1 diagonally.
Terms
- a(0) =56a(1) =672a(2) =14112a(3) =522144a(4) =33939360a(5) =3869087040a(6) =773817408000
External references
- oeis: A190604