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Search: id:A087363
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| A087363 |
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Primes whose digits are twin primes. |
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+0
5
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| 3, 5, 7, 37, 53, 73, 337, 353, 373, 557, 577, 733, 757, 773, 3373, 3533, 3557, 3733, 5333, 5557, 5573, 5737, 7333, 7537, 7573, 7577, 7753, 7757, 33353, 33377, 33533, 33577, 33757, 33773, 35353, 35533, 35537, 35573, 35753, 37337, 37357, 37537
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Primes whose digits are odd primes. [From Omar E. Pol (info(AT)polprimos.com), Dec 02 2008]
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PROGRAM
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(PARI) pdigitp(n) = { forprime(x=2, n, flag=1; y=x; for(j=1, length(Str(y)), r = y%10; if(r<>3 && r<>5 && r<>7, flag=0); y = floor(y/10); ); if(flag, print1(x", ")); ) }
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CROSSREFS
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Sequence in context: A106115 A155034 A154544 this_sequence A037287 A163797 A130536
Adjacent sequences: A087360 A087361 A087362 this_sequence A087364 A087365 A087366
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KEYWORD
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easy,nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Oct 21 2003
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EXTENSIONS
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Corrected by T. D. Noe (noe(AT)sspectra.com), Nov 15 2006
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