Number of 5X5X5 triangular 0..n arrays with some element plus some adjacent element totalling n exactly once.
A270260
Number of 5X5X5 triangular 0..n arrays with some element plus some adjacent element totalling n exactly once.
Terms
- a(0) =0a(1) =3612a(2) =3280968a(3) =308256072a(4) =12712991544a(5) =233617868244
External references
- oeis: A270260