T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 00100101 or 01010101.

A261265

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 00100101 or 01010101.

Terms

    a(0) =36a(1) =41a(2) =41a(3) =91a(4) =52a(5) =91a(6) =166a(7) =110a(8) =110a(9) =166a(10) =321a(11) =232a(12) =288a(13) =232a(14) =321a(15) =586a(16) =418a(17) =690a(18) =690a(19) =418a(20) =586a(21) =1123a(22) =758a(23) =1483a(24) =1918a(25) =1483a(26) =758a(27) =1123a(28) =2082a(29) =1436

External references