Number of nX6 0..3 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..3 order.

A222377

Number of nX6 0..3 arrays with no more than floor(nX6/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..3 order.

Terms

    a(0) =14a(1) =234a(2) =8111a(3) =342953a(4) =16985929a(5) =963154789a(6) =61522684225

External references