id:A153219 - OEIS Search Results

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Numbers n such that 6n+7 is not prime

+0
3

3, 7, 8, 13, 14, 18, 19, 21, 23, 27, 28, 30, 33, 35, 38, 40, 41, 42, 43, 47, 48, 49, 52, 53, 56, 58, 59, 63, 64, 66, 68, 70, 73, 74, 77, 78, 79, 81, 83, 84, 85, 87, 88, 91, 92, 93 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`Let p = prime number; n=(p^2-7)/6 mod (p)`
	CROSSREFS	`Cf. A153218` `Sequence in context: A031425 A063657 A108575 this_sequence A050014 A132017 A010342` `Adjacent sequences: A153216 A153217 A153218 this_sequence A153220 A153221 A153222`
	KEYWORD	`nonn`
	AUTHOR	`Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Dec 21 2008`

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

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