A073783 - OEIS

This site is supported by donations to The OEIS Foundation.

A073783

Differences between composite numbers.

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; refs; listen; history; internal format)

	OFFSET	`1,1`
	COMMENTS	`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: A089679 A199010 A026605 * A134430 A130658 A014695` `Adjacent sequences: A073780 A073781 A073782 * A073784 A073785 A073786`
	KEYWORD	`easy,nonn`
	AUTHOR	`Lior Manor (lior.manor(AT)gmail.com) Aug 11 2002`

Content is available under The OEIS End-User License Agreement .

Last modified February 14 08:34 EST 2012. Contains 205614 sequences.