T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000101 00010001 or 00010101.
A260609
T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000101 00010001 or 00010101.
Terms
- a(0) =40a(1) =58a(2) =58a(3) =125a(4) =118a(5) =125a(6) =241a(7) =250a(8) =250a(9) =241a(10) =525a(11) =532a(12) =610a(13) =532a(14) =525a(15) =1029a(16) =1136a(17) =1334a(18) =1334a(19) =1136a(20) =1029a(21) =2246a(22) =2480a(23) =3343a(24) =3388a(25) =3343a(26) =2480a(27) =2246a(28) =4407a(29) =5418
External references
- oeis: A260609