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A125345 Number of base 8 circular n-digit numbers with adjacent digits differing by 4 or less. 0
1, 8, 52, 308, 2012, 13308, 88582, 590710, 3941716, 26308100, 175600282, 1172118538, 7823866514, 52224288462, 348597313326, 2326889050098, 15531999290132, 103676198275324, 692039319384424, 4619367120609720 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

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

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]`-$[(i+1)mod N]`>4)+($[(i+1)mod N]`-$[i]`>4))

CROSSREFS

Sequence in context: A000432 A153336 A080279 * A111996 A016129 A006631

Adjacent sequences:  A125342 A125343 A125344 * A125346 A125347 A125348

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified November 1 04:57 EDT 2014. Contains 248887 sequences.