Number of 3Xn 0..3 arrays with exactly floor(3Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
A222796
Number of 3Xn 0..3 arrays with exactly floor(3Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =0a(1) =8a(2) =34a(3) =275a(4) =888a(5) =14292a(6) =62072a(7) =1144030a(8) =5213239a(9) =98670352a(10) =454254970a(11) =8668405392a(12) =40062023836a(13) =768672153916
External references
- oeis: A222796