Number of n X 2 0..3 arrays with every element plus 1 mod 4 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
A278183
Number of n X 2 0..3 arrays with every element plus 1 mod 4 equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
Terms
- a(0) =0a(1) =3a(2) =28a(3) =200a(4) =1532a(5) =11794a(6) =90538a(7) =695252a(8) =5339294a(9) =41003018a(10) =314882364a(11) =2418138526a(12) =18570087298a(13) =142608927356
External references
- oeis: A278183