Number of nX3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,0,1,3 for x=0,1,2,3,4.
A197042
Number of nX3 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,0,1,3 for x=0,1,2,3,4.
Terms
- a(0) =2a(1) =20a(2) =120a(3) =698a(4) =4080a(5) =24074a(6) =141856a(7) =833758a(8) =4909544a(9) =28899922a(10) =170120402a(11) =1001361542a(12) =5894102732a(13) =34694985108a(14) =204224876622
External references
- oeis: A197042