Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001011.

A260282

Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000000 00000001 or 00001011.

Terms

    a(0) =714a(1) =2726a(2) =15306a(3) =60955a(4) =264502a(5) =1271212a(6) =5588466a(7) =24324681a(8) =110763233a(9) =496845217a(10) =2197293358a(11) =9844054535a(12) =44142441243a(13) =196695517269a(14) =878487450144

External references