Number of nX5 0..1 arrays with every element unequal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.

A304055

Number of nX5 0..1 arrays with every element unequal to 1, 2, 4 or 5 king-move adjacent elements, with upper left element zero.

Terms

    a(0) =3a(1) =51a(2) =32a(3) =155a(4) =596a(5) =1641a(6) =5415a(7) =30207a(8) =124598a(9) =500772a(10) =2563187a(11) =11938158a(12) =52758745a(13) =263350294a(14) =1254691561a(15) =5814881820a(16) =28525545716a(17) =136746379603a(18) =646825243649

External references