T(n,k)=Number of nXk 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.
A232376
T(n,k)=Number of nXk 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.
Terms
- a(0) =1a(1) =2a(2) =1a(3) =4a(4) =14a(5) =1a(6) =8a(7) =74a(8) =58a(9) =1a(10) =14a(11) =296a(12) =586a(13) =230a(14) =1a(15) =26a(16) =1130a(17) =4404a(18) =4550a(19) =934a(20) =1a(21) =48a(22) =4682a(23) =32722a(24) =63744a(25) =36574a(26) =3794a(27) =1a(28) =88a(29) =19448
External references
- oeis: A232376