id:A130771 - OEIS Search Results

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Numbers n not divisible by 3 for which neither 2n-3 nor 2n+3 are primes.

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26, 44, 59, 61, 79, 86, 103, 106, 109, 125, 128, 131, 146, 149, 151, 161, 163, 166, 179, 184, 187, 194, 205, 224, 236, 239, 254, 257, 265, 266, 268, 271, 274, 278, 281, 289, 293, 296, 304, 313, 316, 326, 334, 341, 346, 350, 355, 359, 364, 367, 376, 389, 391 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`This is A130699 with the trivial multiples of 3 removed.`
	EXAMPLE	`26 because 226+3=55 is not a prime, nor is 226-3=49.`
	CROSSREFS	`Cf. A130699, A001651.` `Adjacent sequences: A130768 A130769 A130770 this_sequence A130772 A130773 A130774` `Sequence in context: A075288 A125218 A138727 this_sequence A039458 A118367 A137263`
	KEYWORD	`easy,nonn`
	AUTHOR	`Neville Holmes (neville.holmes(AT)utas.edu.au), Jul 14 2007`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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