Number of (n+1) X 4 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly one clockwise edge increases.

A207045

Number of (n+1) X 4 0..2 arrays with every 2 X 3 or 3 X 2 subblock having exactly one clockwise edge increases.

Terms

    a(0) =441a(1) =552a(2) =750a(3) =1272a(4) =2094a(5) =3408a(6) =5850a(7) =9792a(8) =15966a(9) =26880a(10) =45024a(11) =73656a(12) =123486a(13) =206976a(14) =339648a(15) =567600a(16) =951390a(17) =1565568a(18) =2610048a(19) =4373160a(20) =7213662a(21) =12005760a(22) =20102688a(23) =33227808a(24) =55236702a(25) =92416512a(26) =153013920a(27) =254174616a(28) =424902750

External references