Number of n X 3 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or vertically, with no adjacent values equal.
A232060
Number of n X 3 0..2 arrays with every 0 next to a 1 and every 1 next to a 2 horizontally or vertically, with no adjacent values equal.
Terms
- a(0) =4a(1) =14a(2) =46a(3) =130a(4) =410a(5) =1194a(6) =3722a(7) =10942a(8) =33806a(9) =100142a(10) =307418a(11) =915594a(12) =2797794a(13) =8365310a(14) =25477518a(15) =76390718a(16) =232103802a(17) =697334282a(18) =2115143362a(19) =6363967678a(20) =19279364750a(21) =58067541662a(22) =175757663194a(23) =529761502474
External references
- oeis: A232060