T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010001 00010101 or 01010101.

A261113

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010001 00010101 or 01010101.

Terms

    a(0) =28a(1) =33a(2) =33a(3) =63a(4) =52a(5) =63a(6) =97a(7) =106a(8) =106a(9) =97a(10) =183a(11) =206a(12) =278a(13) =206a(14) =183a(15) =289a(16) =402a(17) =566a(18) =566a(19) =402a(20) =289a(21) =547a(22) =790a(23) =1408a(24) =1498a(25) =1408a(26) =790a(27) =547a(28) =865a(29) =1546

External references