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A125359 Number of base 22 circular n-digit numbers with adjacent digits differing by 4 or less. 0
1, 22, 178, 1162, 8858, 68622, 544618, 4381798, 35637914, 292226842, 2411821538, 20009585090, 166720115762, 1394041188406, 11690891947304, 98287713954492, 828060495187498, 6988697529064642, 59072380033613392, 499951394598901592 (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: A321268 A086604 A041932 * A126517 A197496 A107969

Adjacent sequences:  A125356 A125357 A125358 * A125360 A125361 A125362

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified December 9 08:17 EST 2021. Contains 349627 sequences. (Running on oeis4.)