Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,3,4 for x=0,1,2,3,4.
A196136
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,2,1,3,4 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =19a(2) =70a(3) =251a(4) =1350a(5) =3716a(6) =20706a(7) =63545a(8) =255501a(9) =992477a(10) =3693353a(11) =15143098a(12) =54682695a(13) =222402469a(14) =838015799a(15) =3238327921a(16) =12552211666a(17) =47967154876a(18) =187109798637a(19) =714494895572
External references
- oeis: A196136