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 A168393 Moebius function of interprimes (A024675). 0
 0, 1, 0, 0, 1, 0, 1, 1, -1, 1, 1, -1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, -1, -1, 0, 1, 0, 1, 1, -1, 0, 0, -1, 0, -1, -1, 0, 0, -1, 0, -1, 0, 1, 1, 0, 0, -1, 0, 0, -1, 1, 0, -1, 0, 1, 0, -1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, -1, 0, 1, 1, 1, -1, 0, 0, 0, -1, 0, 0, 0, 1, 1, 0, 1, -1, 1, -1, 1, 0, 1, -1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MAPLE ts_fip:=proc(n) local i, an: an:=[ ]: for i from 2 to n do an:=[ op(an), numtheory[mobius]((ithprime(i)+ithprime(i+1))/2) ]: od: RETURN(an) end: ts_fip(500); CROSSREFS Cf. A008683. Sequence in context: A285411 A104893 A104894 * A071986 A079944 A059652 Adjacent sequences:  A168390 A168391 A168392 * A168394 A168395 A168396 KEYWORD sign AUTHOR Jani Melik, Nov 24 2009 STATUS approved

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Last modified June 12 16:05 EDT 2021. Contains 344959 sequences. (Running on oeis4.)