id:A117987 - OEIS Search Results

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Number of functions f:[n]->[n] such that f[(2*x) mod n]=[2*f(x)] mod n for all x in [n], for n=1,2,3,... Here [n] denotes {0,1,2,...,n-1}.

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1, 2, 3, 8, 5, 24, 49, 128 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`See A117986 and A117988 for results on other modular functional equations.`
	CROSSREFS	`Cf. A117986, A117988.` `Sequence in context: A062956 A053650 A119794 this_sequence A091136 A140651 A007955` `Adjacent sequences: A117984 A117985 A117986 this_sequence A117988 A117989 A117990`
	KEYWORD	`nonn`
	AUTHOR	`John W. Layman (layman(AT)math.vt.edu), Apr 11 2006`

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.