Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,1,1,0 for x=0,1,2,3,4.
A197346
Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,1,1,0 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =17a(2) =83a(3) =441a(4) =2289a(5) =12399a(6) =71411a(7) =387651a(8) =2116197a(9) =11718977a(10) =64938109a(11) =356963085a(12) =1965892155a(13) =10861424867a(14) =59918428781a(15) =330197022079
External references
- oeis: A197346