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A124998 Number of base 32 circular n-digit numbers with adjacent digits differing by 2 or less. 1
1, 32, 154, 578, 2542, 11242, 51004, 234168, 1086342, 5078522, 23889964, 112953048, 536316184, 2555650688, 12215701582, 58545624238, 281245522518, 1353858728442, 6529181968828, 31539774822672, 152581524133232 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+A005191(n+1) for base>=2.int(n/2)+1

LINKS

Table of n, a(n) for n=0..20.

PROG

(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>2)+($[(i+1)mod N]`-$[i]`>2))

CROSSREFS

Sequence in context: A100172 A234132 A203557 * A126419 A197621 A318159

Adjacent sequences:  A124995 A124996 A124997 * A124999 A125000 A125001

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified May 26 13:59 EDT 2022. Contains 354092 sequences. (Running on oeis4.)