id:A048524 - OEIS Search Results

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Primes for which only two iterations of 'Prime plus its digit sum equals a prime' is possible.

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11, 59, 101, 149, 167, 257, 293, 367, 419, 479, 547, 617, 727, 839, 1409, 1579, 1847, 2039, 2129, 2617, 2657, 2837, 3449, 3517, 3539, 3607, 3719, 4217, 4637, 4877, 5689, 5807, 5861, 6037, 6257, 6761, 7027, 7517, 8039, 8741, 8969, 9371, 9377, 10667 (list; graph; listen)

	OFFSET	`0,1`
	EXAMPLE	`prime 727 -> 727 + (7+2+7) = prime 743 -> 743 + (7+4+3) = prime 757 -> next iteration yields composite 776.`
	CROSSREFS	`Cf. A047791, A048519.` `Sequence in context: A073720 A141302 A139872 this_sequence A142401 A139859 A082884` `Adjacent sequences: A048521 A048522 A048523 this_sequence A048525 A048526 A048527`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), May 15 1999.`

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Last modified July 19 08:04 EDT 2008. Contains 142098 sequences.

AT&T Labs Research