Number of nX6 0..4 arrays with each element equal to the number its horizontal and vertical neighbors equal to 2.

A197059

Number of nX6 0..4 arrays with each element equal to the number its horizontal and vertical neighbors equal to 2.

Terms

    a(0) =1a(1) =7a(2) =22a(3) =47a(4) =90a(5) =211a(6) =547a(7) =1364a(8) =3190a(9) =7411a(10) =17630a(11) =42520a(12) =101976a(13) =242655a(14) =576887a(15) =1375887a(16) =3286861a(17) =7846310a(18) =18711439a(19) =44618322a(20) =106438197a(21) =253962851a(22) =605897990a(23) =1445349638a(24) =3447805485a(25) =8224998562a(26) =19621841396a(27) =46809917238a(28) =111668032901

External references