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A088257
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Primorials P which have at least one prime neighbor. i.e. P+1 or P-1 or both are primes.
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4
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OFFSET
| 1,2
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COMMENTS
| A supersequence of A088256.
Next term a(10) is 131 digits and is too large to include.
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MATHEMATICA
| Select[FoldList[Times, 1, Prime[Range[70]]], PrimeQ[#-1]||PrimeQ[#+1]&] (* From Harvey P. Dale, Oct 22 2011 *)
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CROSSREFS
| Cf. A088256.
Sequence in context: A171989 A002110 A118491 * A058694 A046853 A136351
Adjacent sequences: A088254 A088255 A088256 * A088258 A088259 A088260
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KEYWORD
| nonn
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AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 27 2003
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EXTENSIONS
| More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 28 2003
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