T(n,k)=4X4 square grid graph coloring a rectangular array: number of nXk 0..15 arrays where 0..15 label nodes of the square grid graph and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.
A223402
T(n,k)=4X4 square grid graph coloring a rectangular array: number of nXk 0..15 arrays where 0..15 label nodes of the square grid graph and every array movement to a horizontal or vertical neighbor moves along an edge of this graph.
Terms
- a(0) =16a(1) =48a(2) =48a(3) =152a(4) =328a(5) =152a(6) =488a(7) =2360a(8) =2360a(9) =488a(10) =1576a(11) =17280a(12) =39480a(13) =17280a(14) =1576a(15) =5096a(16) =127464a(17) =672784a(18) =672784a(19) =127464a(20) =5096a(21) =16488a(22) =943016a(23) =11561512a(24) =26836512a(25) =11561512a(26) =943016a(27) =16488a(28) =53352a(29) =6985008
External references
- oeis: A223402