Number of 3Xn 0..2 arrays with exactly floor(3Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
A222692
Number of 3Xn 0..2 arrays with exactly floor(3Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
Terms
- a(0) =0a(1) =8a(2) =32a(3) =220a(4) =664a(5) =7248a(6) =25642a(7) =298371a(8) =1096152a(9) =12945294a(10) =48211246a(11) =573628264a(12) =2151355010a(13) =25742089966a(14) =97071821386
External references
- oeis: A222692