A125320 - OEIS

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A125320

Number of base 10 circular n-digit numbers with adjacent digits differing by 3 or less.

1, 10, 58, 286, 1618, 9330, 54994, 328058, 1973026, 11928418, 72360138, 439900746, 2677993234, 16317209282, 99477496666, 606677367546, 3700738695234, 22577766952946, 137756725752298, 840561549454570 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	COMMENTS	`[Empirical] a(base,n)=a(base-1,n)+A025012(n+1) for base>=3.int(n/2)+1`
	PROG	(S/R) stvar $[N]:(0..M-1) init $[]:=0 asgn $[]->{*} kill +[i in 0..N-1](($[i]`-$[(i+1)mod N]`>3)+($[(i+1)mod N]`-$[i]`>3))
	CROSSREFS	`Sequence in context: A189417 A060157 A055583 * A126730 A126478 A044148` `Adjacent sequences: A125317 A125318 A125319 * A125321 A125322 A125323`
	KEYWORD	`nonn,base`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net), Dec 28 2006`

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Last modified February 15 21:27 EST 2012. Contains 205859 sequences.