id:A048525 - OEIS Search Results

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

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277, 1559, 5779, 7489, 11279, 15091, 22093, 37811, 43579, 46279, 48541, 49957, 53479, 54751, 60589, 68473, 72883, 74821, 83621, 85621, 90793, 91921, 93901, 97501, 107981, 110899, 111799, 120193, 153379, 157739, 170299, 180731, 184441 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`prime 7489 -> 7489 + (7+4+8+9) = prime 7517 -> 7517 + (7+5+1+7) = prime 7537 -> 7537 + (7+5+3+7) = prime 7559 -> next iteration yields composite 7585.`
	CROSSREFS	`Cf. A047791, A048519.` `Sequence in context: A142127 A142831 A105977 this_sequence A154231 A056995 A062384` `Adjacent sequences: A048522 A048523 A048524 this_sequence A048526 A048527 A048528`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), May 15 1999.`

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.

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