id:A112776 - OEIS Search Results

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Numbers n such that 6n+5 is semiprime.

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5, 10, 12, 15, 19, 23, 25, 26, 30, 33, 34, 35, 36, 47, 49, 50, 53, 54, 55, 56, 60, 61, 62, 65, 67, 68, 72, 78, 80, 82, 85, 87, 88, 90, 91, 96, 101, 103, 104, 105, 111, 114, 115, 117, 118, 121, 122, 124, 125, 127, 129, 130, 131, 133, 135, 141, 144, 148, 149, 150 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Resulting semiprimes in A108172.`
	FORMULA	`a(n) = (A108172(n) - 5)/6.`
	CROSSREFS	`Sequence in context: A098670 A162821 A059324 this_sequence A120063 A101839 A087920` `Adjacent sequences: A112773 A112774 A112775 this_sequence A112777 A112778 A112779`
	KEYWORD	`easy,nonn`
	AUTHOR	`Jonathan Vos Post (jvospost3(AT)gmail.com) and Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 15 2005`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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