id:A074856 - OEIS Search Results

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Primes p such that all p-k^2 for p/2 < k^2 < p are composite.

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2, 5, 13, 17, 31, 37, 61, 79, 89, 97, 109, 127, 139, 193, 229, 277, 307, 311, 313, 349, 373, 379, 401, 409, 439, 457, 499, 541, 569, 571, 577, 653, 661, 691, 701, 709, 751, 811, 823, 829, 877, 991, 1021, 1069, 1087, 1201, 1291, 1381, 1429, 1483, 1549, 1597 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`61 is here since the squares between 30 and 61 are 36 and 49 and 61-49 = 12, 61-36 = 25, composites.`
	CROSSREFS	`Adjacent sequences: A074853 A074854 A074855 this_sequence A074857 A074858 A074859` `Sequence in context: A068486 A099332 A031439 this_sequence A087952 A124255 A079936`
	KEYWORD	`nonn`
	AUTHOR	`Jason Earls (jcearls(AT)cableone.net), Sep 11 2002`

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.

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