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A125374 Number of base 11 circular n-digit numbers with adjacent digits differing by 5 or less. 0
1, 11, 91, 671, 5551, 46761, 398065, 3401871, 29120743, 249448001, 2137362811, 18315799997, 156961741753, 1345147895869, 11527885950497, 98794030243881, 846666363905255, 7255947727689297, 62183631402541039, 532915135391447739 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+F(5) for base>=5.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..19.

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>5)+($[(i+1)mod N]`-$[i]`>5))

CROSSREFS

Sequence in context: A055083 A016160 A005062 * A245599 A126532 A226868

Adjacent sequences:  A125371 A125372 A125373 * A125375 A125376 A125377

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified September 28 06:22 EDT 2022. Contains 357063 sequences. (Running on oeis4.)