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A125362 Number of base 25 circular n-digit numbers with adjacent digits differing by 4 or less. 0
1, 25, 205, 1345, 10325, 80475, 642601, 5201179, 42555989, 351057541, 2915011415, 24333734747, 204025109321, 1716939536441, 14493675325957, 122675396959965, 1040712670097941, 8846367126653991, 75326437255237327 (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..18.

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: A146722 A042210 A220677 * A126520 A324794 A348201

Adjacent sequences:  A125359 A125360 A125361 * A125363 A125364 A125365

KEYWORD

nonn,base

AUTHOR

R. H. Hardin, Dec 28 2006

STATUS

approved

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Last modified January 24 12:49 EST 2022. Contains 350538 sequences. (Running on oeis4.)