id:A119416 - OEIS Search Results

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A119416

n * (smallest prime greater than largest prime factor of n).

+0
3

2, 6, 15, 12, 35, 30, 77, 24, 45, 70, 143, 60, 221, 154, 105, 48, 323, 90, 437, 140, 231, 286, 667, 120, 175, 442, 135, 308, 899, 210, 1147, 96, 429, 646, 385, 180, 1517, 874, 663, 280, 1763, 462, 2021, 572, 315, 1334, 2491, 240, 539, 350, 969, 884, 3127, 270 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) = n * A117366(n);` `A000005(a(n)) = 2*A000005(n) = A062011(n).`
	EXAMPLE	`a(10) = (25)7.`
	MATHEMATICA	`Insert[Table[n*Prime[PrimePi[FactorInteger[n][[ -1]][[1]]] + 1], {n, 2, 100}], 2, 1] - Stefan Steinerberger (stefan.steinerberger(AT)gmail.com), May 18 2006`
	CROSSREFS	`Cf. A006530, A087560.` `Sequence in context: A072171 A131518 A130642 this_sequence A134891 A020947 A011777` `Adjacent sequences: A119413 A119414 A119415 this_sequence A119417 A119418 A119419`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 17 2006`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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