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A093013 Numbers n such that 10n-3 and 10n+3 are both primes. 2
1, 2, 4, 5, 7, 10, 11, 16, 17, 23, 26, 28, 31, 35, 37, 46, 56, 59, 61, 65, 68, 73, 86, 88, 95, 98, 109, 110, 112, 119, 122, 128, 130, 137, 143, 145, 149, 161, 166, 175, 178, 187, 191, 199, 200, 214, 221, 224, 227, 229, 238, 242, 247, 266, 268, 269, 271, 280, 284, 290 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

a(n) = A091992(n)/2, Contains all terms of A093014.

Sequence in context: A155722 A049045 A153766 * A188029 A187951 A047495

Adjacent sequences:  A093010 A093011 A093012 * A093014 A093015 A093016

KEYWORD

nonn

AUTHOR

Ray Chandler (rayjchandler(AT)sbcglobal.net), Mar 19 2004

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Last modified February 16 10:32 EST 2012. Contains 205904 sequences.