Number of nX5 0..1 arrays with every element equal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

A300462

Number of nX5 0..1 arrays with every element equal to 2, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

Terms

    a(0) =0a(1) =9a(2) =22a(3) =142a(4) =1146a(5) =7456a(6) =55663a(7) =400028a(8) =2906875a(9) =21162204a(10) =153677233a(11) =1117612488a(12) =8123629685a(13) =59057261422a(14) =429317113075

External references