A125355 Number of base 18 circular n-digit numbers with adjacent digits differing by 4 or less.

1, 18, 142, 918, 6902, 52818, 413974, 3289290, 26413814, 213785910, 1740901972, 14244084664, 116982000962, 963573445450, 7955405806616, 65801903210688, 545060017403430, 4520080784608610, 37517875619404780, 311628272467347236

Offset: 0

Author

R. H. Hardin, Dec 28 2006

Keywords

• nonn
• base

Comments

[Empirical] a(base,n)=a(base-1,n)+A025014(n+1) for base>=4.int(n/2)+1

Links

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