Number of length n+4 0..3 arrays with some pair in every consecutive five terms totalling exactly 3.
A246887
Number of length n+4 0..3 arrays with some pair in every consecutive five terms totalling exactly 3.
Terms
- a(0) =900a(1) =3364a(2) =12544a(3) =46656a(4) =173056a(5) =643204a(6) =2390116a(7) =8880400a(8) =32993536a(9) =122589184a(10) =455480964a(11) =1692335044a(12) =6287855616a(13) =23362511104a(14) =86803301376a(15) =322517224836
External references
- oeis: A246887