A056784 - OEIS

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A056784

First nonprime in a sequence of consecutive nonprimes which is at least twice as long as any earlier run of consecutive nonprimes in this list.

1, 8, 90, 524, 9552, 31398, 2010734, 2300942550, 2614941710600, 352521223451364324 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	LINKS	`Thomas R. Nicely, First occurrence of prime gaps`
	EXAMPLE	`2300942550 is the first of 319 consecutive composite numbers.` `2614941710600 is the first of 651 consecutive composite numbers.` `352521223451364324 is the first of 1327 consecutive composite numbers.`
	CROSSREFS	`Cf. A008950, A008995, A008996, A114100, A002386.` `Sequence in context: A045732 A077192 A128304 * A166769 A187667 A092956` `Adjacent sequences: A056781 A056782 A056783 * A056785 A056786 A056787`
	KEYWORD	`nonn`
	AUTHOR	`Frank Michael Richards (fmrichards(AT)usa.net), Jun 19 2001`
	EXTENSIONS	`Corrected by R. J. Mathar, Sep 29 2006` `Three more terms from Donovan Johnson (donovan.johnson(AT)yahoo.com), Jan 28 2008`

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Last modified February 13 08:12 EST 2012. Contains 205451 sequences.