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 A107294 GCD of (n + prime(n)) and (n + 1 + prime(n+1)). 0
 1, 1, 1, 1, 1, 1, 3, 1, 1, 3, 7, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 1, 7, 1, 1, 1, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 5, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,7 LINKS EXAMPLE a(139) = 13 because {(139 + prime(139)), (140 + prime(140))} = {936, 949} ={13*72,13*73}. MATHEMATICA Table[GCD[n+Prime[n], n+1+Prime[n+1]], {n, 150}] CROSSREFS Cf. A014688. Sequence in context: A089312 A246674 A058735 * A161788 A345468 A351518 Adjacent sequences: A107291 A107292 A107293 * A107295 A107296 A107297 KEYWORD nonn AUTHOR Zak Seidov, May 20 2005 STATUS approved

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Last modified November 28 12:11 EST 2022. Contains 358416 sequences. (Running on oeis4.)