id:A090141 - OEIS Search Results

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a(n) = Mod[n,4+Sum[Mod[Floor[n/4^m],4],{m,1,10}]]

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1, 2, 3, 4, 0, 1, 2, 2, 3, 4, 5, 5, 6, 0, 1, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6, 4, 5, 6, 7, 2, 3, 4, 5, 1, 2, 3, 4, 0, 1, 2, 3, 8, 0, 1, 2, 6, 0, 1, 2, 4, 5, 6, 7, 2, 3, 4, 5, 0, 1, 2, 3, 4, 0, 1, 2, 2, 3, 4, 5, 2, 3, 4, 5, 4, 5, 6, 7, 2, 3, 4, 5, 0, 1, 2, 3, 0, 1, 2, 3, 2, 3, 4, 5, 5, 6, 0, 1, 4, 5, 6, 7, 5, 6 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`A variable cycle rate based on powers of four.` `The variable cycle function is chaotic.`
	MATHEMATICA	`digits=200 f[n_]=4+Sum[Mod[Floor[n/4^m], 4], {m, 1, 10}] a=Table[Mod[n, f[n]], {n, 1, digits}]`
	CROSSREFS	`Sequence in context: A023868 A122275 A031235 this_sequence A049264 A010874 A125926` `Adjacent sequences: A090138 A090139 A090140 this_sequence A090142 A090143 A090144`
	KEYWORD	`nonn`
	AUTHOR	`Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Jan 19 2004`

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Last modified July 23 17:35 EDT 2008. Contains 142285 sequences.

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