A125328 Number of base 18 circular n-digit numbers with adjacent digits differing by 3 or less.

1, 18, 114, 582, 3466, 20938, 129642, 813586, 5161418, 33012690, 212531034, 1375465890, 8940439306, 58322410658, 381620168176, 2503490173972, 16459423126778, 108417784128158, 715300322712000, 4725856346389840

Offset: 0

Author

R. H. Hardin, Dec 28 2006

Keywords

• nonn
• base

Comments

[Empirical] a(base,n)=a(base-1,n)+A025012(n+1) for base>=3.int(n/2)+1

Links

• OEIS Wiki, Number of base k circular n-digit numbers with adjacent digits differing by d or less