T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock.
A236087
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the difference of the upper median and the minimum in each 2X2 subblock.
Terms
- a(0) =256a(1) =2400a(2) =2400a(3) =22506a(4) =38640a(5) =22506a(6) =211560a(7) =601166a(8) =601166a(9) =211560a(10) =1998580a(11) =9486338a(12) =15352800a(13) =9486338a(14) =1998580a(15) =18841712a(16) =150467212a(17) =392462578a(18) =392462578a(19) =150467212a(20) =18841712a(21) =177646290a(22) =2390621976a(23) =10285907173a(24) =16839382568
External references
- oeis: A236087