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A125451 Number of base 16 circular n-digit numbers with adjacent digits differing by 8 or less. 0
1, 16, 200, 2248, 28184, 358936, 4608164, 59321572, 764448248, 9854829592, 127060867900, 1638314863036, 21124741699196, 272388388188556, 3512262279620630, 45288269086891558, 583962105396237864 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+F(8) for base>=8.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.

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>8)+($[(i+1)mod N]`-$[i]`>8))

CROSSREFS

Sequence in context: A154249 A226869 A257289 * A154348 A129333 A001810

Adjacent sequences:  A125448 A125449 A125450 * A125452 A125453 A125454

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified October 14 15:03 EDT 2019. Contains 328019 sequences. (Running on oeis4.)