id:A068720 - OEIS Search Results

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Arithmetic derivative of squares: a(n)=2*n*A003415(n).

+0
5

0, 4, 6, 32, 10, 60, 14, 192, 108, 140, 22, 384, 26, 252, 240, 1024, 34, 756, 38, 960, 420, 572, 46, 2112, 500, 780, 1458, 1792, 58, 1860, 62, 5120, 924, 1292, 840, 4320, 74, 1596, 1248, 5440, 82, 3444, 86, 4224, 3510, 2300, 94 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = A003415(A000290(n)).`
	CROSSREFS	`Cf. A068719, A068721, A000290, A003415.` `Sequence in context: A136351 A075590 A088255 this_sequence A068402 A078250 A087299` `Adjacent sequences: A068717 A068718 A068719 this_sequence A068721 A068722 A068723`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 26 2002`

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Last modified September 6 16:04 EDT 2008. Contains 143483 sequences.

AT&T Labs Research