A125347 - OEIS

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A125347

Number of base 10 circular n-digit numbers with adjacent digits differing by 4 or less.

1, 10, 70, 430, 2990, 21210, 152752, 1107368, 8054662, 58680898, 427841510, 3120550894, 22764484280, 166081792328, 1211725839660, 8840879076060, 64504607657222, 470639150157006, 3433889688841786, 25054462942728214 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`[Empirical] a(base,n)=a(base-1,n)+A025014(n+1) for base>=4.int(n/2)+1`
	PROG	(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>4)+($[(i+1)mod N]`-$[i]`>4))
	CROSSREFS	`Sequence in context: A002802 A101029 A122892 * A005465 A037600 A037705` `Adjacent sequences: A125344 A125345 A125346 * A125348 A125349 A125350`
	KEYWORD	`nonn,base`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net), Dec 28 2006`

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Last modified February 14 00:47 EST 2012. Contains 205567 sequences.