Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4.
A197276
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4.
Terms
- a(0) =5a(1) =29a(2) =92a(3) =627a(4) =2731a(5) =11850a(6) =57137a(7) =276689a(8) =1344992a(9) =6445595a(10) =30716245a(11) =146763830a(12) =705198523a(13) =3392533967a(14) =16288546542a(15) =78114416927a(16) =374644274789
External references
- oeis: A197276