id:A066179 - OEIS Search Results

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n, (n-1)/2, (n-3)/4 all prime.

+0
2

11, 23, 47, 167, 359, 719, 1439, 2039, 2879, 4079, 4127, 4919, 5639, 5807, 5927, 6047, 7247, 7559, 7607, 7727, 9839, 10799, 11279, 13799, 13967, 14159, 15287, 15647, 20327, 21599, 21767, 23399, 24407, 24527, 25799, 28319, 28607, 29399 (list; graph; listen)

	OFFSET	`0,1`
	COMMENT	`Call p m-prime iff (p-(2^i-1))/2^i is prime for i=0 .. m; sequence gives 2-primes. 0-primes are primes (A000040) and 1-primes are safe primes (A005385). a(n)-1 and a(n) are consecutive terms of the sequence A065966. It is not known if there are infinitely many m-primes for m > 0.`
	CROSSREFS	`Sequence in context: A100558 A126199 A096342 this_sequence A041236 A097485 A098100` `Adjacent sequences: A066176 A066177 A066178 this_sequence A066180 A066181 A066182`
	KEYWORD	`nonn`
	AUTHOR	`Vladeta Jovovic (vladeta(AT)Eunet.yu), Dec 14 2001`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

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