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A125418

Number of base 30 circular n-digit numbers with adjacent digits differing by 6 or less.

1, 30, 348, 3264, 35768, 398960, 4557138, 52777258, 617855120, 7292255532, 86621920558, 1034253538722, 12400539056222, 149190801475434, 1799997776606804, 21768091877166764, 263763834266637472

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OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+F(6) for base>=6.int(n/2)+1 and F(d) is the largest coefficient in (1+x+...+x^(2d))^n

LINKS

Table of n, a(n) for n=0..16.

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

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>6)+($[(i+1)mod N]`-$[i]`>6))

CROSSREFS

Sequence in context: A354656 A115500 A214085 * A339197 A107916 A091775

Adjacent sequences: A125415 A125416 A125417 * A125419 A125420 A125421

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

URL: https://oeis.org/A125418

⇱ A125418 - OEIS