Number of n X 2 0..2 arrays with every element equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0) both plus 1 mod 3 and minus 1 mod 3, with new values introduced in order 0..2.
A277782
Number of n X 2 0..2 arrays with every element equal to some element at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0) both plus 1 mod 3 and minus 1 mod 3, with new values introduced in order 0..2.
Terms
- a(0) =0a(1) =3a(2) =12a(3) =84a(4) =498a(5) =3090a(6) =18930a(7) =116382a(8) =714810a(9) =4391526a(10) =26977818a(11) =165732438a(12) =1018135578a(13) =6254670486a(14) =38424042426a(15) =236048762550
External references
- oeis: A277782