T(n,k)=Number of nXk 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4.
A240347
T(n,k)=Number of nXk 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4.
Terms
- a(0) =2a(1) =4a(2) =4a(3) =8a(4) =18a(5) =8a(6) =16a(7) =78a(8) =78a(9) =16a(10) =32a(11) =334a(12) =722a(13) =334a(14) =32a(15) =64a(16) =1418a(17) =6376a(18) =6376a(19) =1418a(20) =64a(21) =128a(22) =6002a(23) =55680a(24) =115194a(25) =55680a(26) =6002a(27) =128a(28) =256a(29) =25374
External references
- oeis: A240347