id:A030664 - OEIS Search Results

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Product of largest prime <= n and smallest prime >= n.

+0
4

1, 1, 4, 9, 15, 25, 35, 49, 77, 77, 77, 121, 143, 169, 221, 221, 221, 289, 323, 361, 437, 437, 437, 529, 667, 667, 667, 667, 667, 841, 899, 961, 1147, 1147, 1147, 1147, 1147, 1369, 1517, 1517, 1517, 1681, 1763, 1849, 2021, 2021, 2021, 2209, 2491, 2491, 2491 (list; graph; listen)

	OFFSET	`0,3`
	LINKS	`T. D. Noe, Table of n, a(n) for n=0..1000`
	PROGRAM	`(Mupad) numlib::prevprime(i)*nextprime(i) $ i = 0..50 - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Feb 26 2007`
	CROSSREFS	`Cf. A000040, A013638.` `Sequence in context: A134675 A050530 A102084 this_sequence A070160 A056928 A122964` `Adjacent sequences: A030661 A030662 A030663 this_sequence A030665 A030666 A030667`
	KEYWORD	`easy,nonn,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Erich Friedman (erich.friedman(AT)stetson.edu).`

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

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