T(n,k)=Number of nXk 0..4 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, modulo 5.
A239256
T(n,k)=Number of nXk 0..4 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, modulo 5.
Terms
- a(0) =4a(1) =13a(2) =13a(3) =41a(4) =142a(5) =41a(6) =131a(7) =1440a(8) =1440a(9) =131a(10) =419a(11) =14685a(12) =47066a(13) =14685a(14) =419a(15) =1339a(16) =150265a(17) =1536913a(18) =1536913a(19) =150265a(20) =1339a(21) =4279a(22) =1536541a(23) =50317761a(24) =160787652a(25) =50317761a(26) =1536541a(27) =4279a(28) =13675a(29) =15708373
External references
- oeis: A239256