Number of n X n 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.
A239398
Number of n X n 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.
Terms
- a(0) =2a(1) =23a(2) =1337a(3) =394509a(4) =614216271
External references
- oeis: A239398