Number of (n+1) X (2+1) 0..1 arrays with each row and column divisible by 3, read as a binary number with top and left being the most significant bits.

A262326

Number of (n+1) X (2+1) 0..1 arrays with each row and column divisible by 3, read as a binary number with top and left being the most significant bits.

Terms

    a(0) =3a(1) =5a(2) =15a(3) =33a(4) =99a(5) =261a(6) =783a(7) =2241a(8) =6723a(9) =19845a(10) =59535a(11) =177633a(12) =532899a(13) =1595781a(14) =4787343a(15) =14353281a(16) =43059843a(17) =129153285a(18) =387459855a(19) =1162300833a(20) =3486902499a(21) =10460471301a(22) =31381413903a(23) =94143533121a(24) =282430599363a(25) =847289672325

External references