Number of 4 X n 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,-2) or (0,-1) and new values introduced in order 0..2.

A275144

Number of 4 X n 0..2 arrays with no element equal to any value at offset (-2,-2) (-1,-2) or (0,-1) and new values introduced in order 0..2.

Terms

    a(0) =14a(1) =216a(2) =400a(3) =1088a(4) =2320a(5) =6464a(6) =17872a(7) =49792a(8) =139664a(9) =392448a(10) =1102416a(11) =3095808a(12) =8693584a(13) =24414784a(14) =68567696a(15) =192568832a(16) =540817040a(17) =1518847552a(18) =4265581328a(19) =11979603776a(20) =33643929040a(21) =94486756224a(22) =265359817104a(23) =745245528576

External references