T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum of every 2X2 subblock equal.
A236949
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum of every 2X2 subblock equal.
Terms
- a(0) =256a(1) =2796a(2) =2796a(3) =30698a(4) =112888a(5) =30698a(6) =357316a(7) =4301002a(8) =4301002a(9) =357316a(10) =4195956a(11) =178006252a(12) =534626674a(13) =178006252a(14) =4195956a(15) =50119046a(16) =7270497452a(17) =73196854050a(18) =73196854050a(19) =7270497452a(20) =50119046a(21) =601976968a(22) =302691231316
External references
- oeis: A236949