Number of (n+2)X5 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..2 introduced in row major order.
A204949
Number of (n+2)X5 0..2 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..2 introduced in row major order.
Terms
- a(0) =33785a(1) =457852a(2) =7062216a(3) =94983268a(4) =1407027760a(5) =21551078590a(6) =310518886748
External references
- oeis: A204949