id:A079774 - OEIS Search Results

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Consider the triangle shown below in which the n-th row contains the n smallest terms in increasing order having a common factor > 1, the first term being the n-th composite number; sequence gives the last term of each row.

+0
3

4, 8, 12, 18, 18, 22, 26, 36, 32, 36, 40, 54, 46, 50, 95, 56, 75, 62, 66, 70, 93, 76, 145, 82, 86, 114, 92, 96, 100, 132, 106, 110, 273, 116, 153, 122, 126, 240, 132, 174, 138, 142, 146, 192, 152, 290, 158, 162, 213, 168, 172, 176, 231, 182, 455, 188, 192, 252 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`4` `6 8` `8 10 12` `9 12 15 18` `10 12 14 16 18` `12 14 16 18 20 22` `...`
	CROSSREFS	`Cf. A079775, A079776.` `Sequence in context: A036573 A098573 A092753 this_sequence A045672 A072473 A072715` `Adjacent sequences: A079771 A079772 A079773 this_sequence A079775 A079776 A079777`
	KEYWORD	`nonn`
	AUTHOR	`Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jan 31 2003`
	EXTENSIONS	`Corrected and extended by Frank.Ellermann(AT)t-online.de, Jul 11 2003`

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Last modified November 23 10:40 EST 2009. Contains 167421 sequences.

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