4-level binary fanout graph coloring a rectangular array: number of n X 2 0..14 arrays where 0..14 label nodes of a graph with edges 0,1 1,3 3,5 3,6 1,4 4,7 4,8 0,2 2,9 9,11 9,12 2,10 10,13 10,14 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.
A223443
4-level binary fanout graph coloring a rectangular array: number of n X 2 0..14 arrays where 0..14 label nodes of a graph with edges 0,1 1,3 3,5 3,6 1,4 4,7 4,8 0,2 2,9 9,11 9,12 2,10 10,13 10,14 and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.
Terms
- a(0) =28a(1) =104a(2) =408a(3) =1616a(4) =6432a(5) =25664a(6) =102528a(7) =409856a(8) =1638912a(9) =6554624a(10) =26216448a(11) =104861696a(12) =419438592a(13) =1677737984a(14) =6710919168a(15) =26843611136a(16) =107374313472a(17) =429496991744
External references
- oeis: A223443