T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the minimum minus the lower median of every 2X2 subblock.
A236505
T(n,k)=Number of (n+1)X(k+1) 0..3 arrays colored with the maximum plus the minimum minus the lower median of every 2X2 subblock.
Terms
- a(0) =256a(1) =2632a(2) =2632a(3) =27458a(4) =54110a(5) =27458a(6) =284408a(7) =1116232a(8) =1116232a(9) =284408a(10) =2954930a(11) =23079872a(12) =46503900a(13) =23079872a(14) =2954930a(15) =30642966a(16) =477377520a(17) =1936913190a(18) =1936913190a(19) =477377520a(20) =30642966a(21) =318132117a(22) =9873995570a(23) =81160939773
External references
- oeis: A236505