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Search: id:A097489
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| 3, 15, 165, 2805, 81345, 3335145, 196773555, 13970922405, 1411063162905, 150983758430835, 20684774905024395, 3082031460848634855, 551683631491905639045, 105371573614953977057595
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OFFSET
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1,1
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PROGRAM
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(PARI) f(n) = p=1; for(x=1, n, p*=twinl(x); print1(p", ")) \The n-th lower twin prime twinl(n) = { local(c, x); c=0; x=1; while(c<n, if(isprime(prime(x)+2), c++); x++; ); return(prime(x-1)) }
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CROSSREFS
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Cf. A001359, A097492.
Sequence in context: A005016 A105611 A108975 this_sequence A080696 A015013 A153280
Adjacent sequences: A097486 A097487 A097488 this_sequence A097490 A097491 A097492
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KEYWORD
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nonn
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AUTHOR
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Cino Hilliard (hillcino368(AT)gmail.com), Aug 24 2004
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EXTENSIONS
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Edited by Don Reble (djr(AT)nk.ca), Apr 16 2007
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