Number of n X n 0..3 arrays with successive rows and columns fitting to straight lines with strictly increasing slope, with a single point array taken as having zero slope.
A222930
Number of n X n 0..3 arrays with successive rows and columns fitting to straight lines with strictly increasing slope, with a single point array taken as having zero slope.
Terms
- a(0) =4a(1) =106a(2) =10896a(3) =26220153a(4) =263793650432
External references
- oeis: A222930