Number of n X n 0..2 arrays with no element equal to any value at offset (0,-1), (-1,-2) or (-2,0) and new values introduced in order 0..2.
A275031
Number of n X n 0..2 arrays with no element equal to any value at offset (0,-1), (-1,-2) or (-2,0) and new values introduced in order 0..2.
Terms
- a(0) =1a(1) =6a(2) =46a(3) =570a(4) =11624a(5) =421793a(6) =26631796a(7) =2976710318a(8) =583268028453
External references
- oeis: A275031