T(n,k)=Number of nXk 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order.
A233113
T(n,k)=Number of nXk 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =6a(4) =19a(5) =6a(6) =23a(7) =313a(8) =313a(9) =23a(10) =99a(11) =6046a(12) =24912a(13) =6046a(14) =99a(15) =452a(16) =123352a(17) =2154065a(18) =2154065a(19) =123352a(20) =452a(21) =2136a(22) =2565169a(23) =189286871a(24) =794723482a(25) =189286871a(26) =2565169a(27) =2136a(28) =10313a(29) =53692063
External references
- oeis: A233113