T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no element equal to all horizontal neighbors or equal to all vertical neighbors.
A238523
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no element equal to all horizontal neighbors or equal to all vertical neighbors.
Terms
- a(0) =84a(1) =588a(2) =588a(3) =7056a(4) =9612a(5) =7056a(6) =74676a(7) =345744a(8) =345744a(9) =74676a(10) =812028a(11) =10332060a(12) =49787136a(13) =10332060a(14) =812028a(15) =8777664a(16) =321566028a(17) =5576504976a(18) =5576504976a(19) =321566028a(20) =8777664a(21) =95006100a(22) =9918146448a(23) =659389472784
External references
- oeis: A238523