A125546 Number of n X n arrays with entries in 1..11 in which adjacent entries differ by 9 or less (adjacent means in x or y directions).

1, 11, 13763, 1978210109, 32571675386972165, 61452459671072911580420687, 13284933102293631737361621573688797935, 329079799821925392118398338649907446164698978078433

Offset: 0

Author

R. H. Hardin, Dec 31 2006

Keywords

• nonn

Comments

[Empirical] a(base+1,n,diff)=a(base,n,diff)+F(n,diff) for base>=2.diff.(n-1) and F(n,diff)= (n=2, A063496(diff+1)) (n=3, A068744(diff+1)) (n=4, A068745(diff+1)) (n=5, A068746(diff+1)) (n=6, A068747(diff+1))