Number of nX2 0..4 arrays with no entry increasing mod 5 by 4 rightwards or downwards, starting with upper left zero.
A222138
Number of nX2 0..4 arrays with no entry increasing mod 5 by 4 rightwards or downwards, starting with upper left zero.
Terms
- a(0) =4a(1) =52a(2) =676a(3) =8788a(4) =114244a(5) =1485172a(6) =19307236a(7) =250994068a(8) =3262922884a(9) =42417997492a(10) =551433967396
External references
- oeis: A222138