Number of 3 X n 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally or antidiagonally.
A233156
Number of 3 X n 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally or antidiagonally.
Terms
- a(0) =27a(1) =96a(2) =432a(3) =1944a(4) =8856a(5) =40392a(6) =184248a(7) =840456a(8) =3833784a(9) =17488008a(10) =79772472a(11) =363886344a(12) =1659886776a(13) =7571661192a(14) =34538532408a(15) =157549339656a(16) =718669633464
External references
- oeis: A233156