Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,4,0,2,1 for x=0,1,2,3,4.
A196649
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,4,0,2,1 for x=0,1,2,3,4.
Terms
- a(0) =3a(1) =23a(2) =76a(3) =391a(4) =1895a(5) =8118a(6) =37661a(7) =172339a(8) =791490a(9) =3631677a(10) =16619517a(11) =76129750a(12) =348810191a(13) =1598275415a(14) =7323187236a(15) =33551912535a(16) =153722248869a(17) =704306601498
External references
- oeis: A196649