id:A086353 - OEIS Search Results

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Fixed point if nonzero-digit product of n! is iterated.

+0
8

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

	OFFSET	`1,2`
	FORMULA	`a(n)=A051802[n! ]=fixed-point of A051801[n! ]`
	EXAMPLE	`n=10, 10!=362880, iteration list={3628800,2304,24,8},a(10)=8.`
	MATHEMATICA	`prd[x_] := Apply[Times, DeleteCases[IntegerDigits[x], 0]] Table[FixedPoint[prd, w! ], {w, 1, 128}]`
	CROSSREFS	`Cf. A051801, A051802, A086354-A086361, A029898, A010888.` `Sequence in context: A021377 A084686 A040164 this_sequence A019786 A067067 A119279` `Adjacent sequences: A086350 A086351 A086352 this_sequence A086354 A086355 A086356`
	KEYWORD	`base,nonn`
	AUTHOR	`Labos E. (labos(AT)ana.sote.hu), Jul 21 2003`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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