id:A086286 - OEIS Search Results

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Smallest prime factor of 7-smooth numbers.

+0
2

1, 2, 3, 2, 5, 2, 7, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3, 2, 5, 3, 2, 2, 2, 5, 2, 2, 2, 3, 2, 7, 2, 2, 2, 2, 3, 2, 2, 2, 3, 2, 3, 2, 2, 2, 2, 2, 3, 2, 2, 2, 5, 2, 2, 3, 2, 2, 3, 2, 2, 2, 2, 5, 2, 3, 2, 2, 2, 2, 2, 2, 3, 2, 3, 5, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 2, 2, 7, 2, 2, 3, 2, 2, 2, 2, 3, 2, 2, 3, 2, 2 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = A020639(A002473(n));` `a(n) <= A086287(n) <= 7.`
	CROSSREFS	`Sequence in context: A136096 A072591 A085308 this_sequence A135679 A092028 A020639` `Adjacent sequences: A086283 A086284 A086285 this_sequence A086287 A086288 A086289`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Jul 15 2003`

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

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