Number of (n+1) X (1+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

A235179

Number of (n+1) X (1+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 5, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

Terms

    a(0) =72a(1) =212a(2) =576a(3) =1696a(4) =4656a(5) =13736a(6) =38064a(7) =112504a(8) =314448a(9) =930968a(10) =2622192a(11) =7775032a(12) =22048848a(13) =65462648a(14) =186741360a(15) =555058840a(16) =1591397328a(17) =4734719768a(18) =13632852720a(19) =40593168760a(20) =117299196240a(21) =349504739000

External references