Number of n X n 0..3 arrays with no element equal to two plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.
A238990
Number of n X n 0..3 arrays with no element equal to two plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.
Terms
- a(0) =3a(1) =41a(2) =2365a(3) =638779a(4) =860394281
External references
- oeis: A238990