id:A073783 - OEIS Search Results

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Differences between composite numbers.

+0
4

2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 2, 2, 1 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Also, the highest common factors of pair of successive composite numbers. - Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Jan 31 2003` `A073783(n) = A073784(n) + 1`
	FORMULA	`a(n) = A002808(n+1) - A002808(n)`
	EXAMPLE	`a(7) = A002808(8) - A002808(7) = 15 - 14 = 1`
	CROSSREFS	`Cf. A002808, A073784.` `a(n) = A136527(n, n+1).` `Sequence in context: A139352 A089679 A026605 this_sequence A130658 A134430 A014695` `Adjacent sequences: A073780 A073781 A073782 this_sequence A073784 A073785 A073786`
	KEYWORD	`easy,nonn`
	AUTHOR	`Lior Manor (lior.manor(AT)gmail.com) Aug 11 2002`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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