Number of (n+2)X(n+2) symmetric binary matrices without the pattern 1 0 1 vertically, antidiagonally or horizontally.
A190603
Number of (n+2)X(n+2) symmetric binary matrices without the pattern 1 0 1 vertically, antidiagonally or horizontally.
Terms
- a(0) =37a(1) =246a(2) =2435a(3) =36125a(4) =815754a(5) =27533597a(6) =1385237002a(7) =104775207569
External references
- oeis: A190603