id:A086355 - OEIS Search Results

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Fixed point if [nonzero-digit product]-function at initial-value=p[n]=nth prime is iterated.

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2, 3, 5, 7, 1, 3, 7, 9, 6, 8, 3, 2, 4, 2, 6, 5, 2, 6, 8, 7, 2, 8, 8, 4, 8, 1, 3, 7, 9, 3, 4, 3, 2, 4, 8, 5, 5, 8, 8, 2, 8, 8, 9, 4, 8, 8, 2, 2, 6, 8, 8, 2, 8, 1, 7, 8, 8, 4, 4, 6, 6, 2, 2, 3, 9, 2, 9, 8, 6, 8, 2, 5, 2, 8, 4, 4, 2, 4, 4, 8, 8, 8, 2, 8, 8, 6, 6, 4, 8, 4, 6, 2, 6, 8, 8, 5, 2, 1, 3, 2, 4, 5, 9, 4, 5 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n)=A051802[A000040(n)]=fixed-point of A051801[nth prime]`
	EXAMPLE	`n=100, p(100)=541, iteration list={541,20,2},a(100)=2.`
	MATHEMATICA	`prd[x_] := Apply[Times, DeleteCases[IntegerDigits[x], 0]] Table[FixedPoint[prd, Prime[w]], {w, 1, 128}]`
	CROSSREFS	`Cf. A051801, A051802, A086353-A086361, A029898, A010888, A038194.` `Sequence in context: A113656 A007652 A060418 this_sequence A053666 A101987 A126052` `Adjacent sequences: A086352 A086353 A086354 this_sequence A086356 A086357 A086358`
	KEYWORD	`base,nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jul 21 2003`

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Last modified July 26 23:19 EDT 2008. Contains 142293 sequences.

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