Number of 6 X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 1 vertically.

A207174

Number of 6 X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 1 0 1 vertically.

Terms

    a(0) =12a(1) =144a(2) =396a(3) =1989a(4) =6513a(5) =15789a(6) =54208a(7) =182081a(8) =515760a(9) =1608288a(10) =5222049a(11) =15774129a(12) =48430957a(13) =153161876a(14) =472757845a(15) =1455155232a(16) =4543272108a(17) =14099458893a(18) =43567325145a(19) =135359672373a(20) =420297279776

External references