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A124718 Number of base 25 circular n-digit numbers with adjacent digits differing by 1 or less. 0
1, 25, 73, 169, 453, 1205, 3301, 9125, 25501, 71773, 203253, 578405, 1652793, 4739305, 13630417, 39303329, 113588941, 328938125, 954262789, 2772787445, 8068471393, 23508942353, 68578993897, 200272341785, 585441977665 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

[Empirical] a(base,n)=a(base-1,n)+A002426(n+1) for base>=1.int(n/2)+1

PROG

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

CROSSREFS

Sequence in context: A063308 A154050 A069190 * A126379 A114553 A098439

Adjacent sequences:  A124715 A124716 A124717 * A124719 A124720 A124721

KEYWORD

nonn,base

AUTHOR

R. H. Hardin (rhhardin(AT)att.net), Dec 28 2006

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Last modified February 13 13:22 EST 2012. Contains 205483 sequences.