Number of n X 8 binary arrays with every 1 having exactly three king-move neighbors equal to 1.

A183455

Number of n X 8 binary arrays with every 1 having exactly three king-move neighbors equal to 1.

Terms

    a(0) =1a(1) =19a(2) =63a(3) =139a(4) =723a(5) =3005a(6) =9511a(7) =36995a(8) =150145a(9) =547767a(10) =2049243a(11) =8099185a(12) =31232375a(13) =118794973a(14) =475013103a(15) =1906016687a(16) =7508667425a(17) =31409068325a(18) =132833355231a(19) =551489805231

External references