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 A168395 Moebius function of odd interprimes (A072569). 0
 0, 1, 1, 1, 0, 1, 0, 1, 0, -1, 1, 1, -1, -1, 1, 1, 0, -1, 0, 1, 0, 0, 0, 1, 1, -1, 0, 0, 1, 0, -1, 1, -1, 1, 0, 1, 1, -1, 0, -1, 1, 0, 1, -1, 1, -1, 0, -1, 0, 1, 1, 0, 0, -1, 1, -1, -1, 0, -1, 1, 1, -1, -1, 1, 1, 0, -1, -1, 1, 0, 1, 0, 1, -1, 1, 0, 1, 0, 0, 0, -1, 0, 1, 0, -1, -1, 1, 1, 1, -1, 1, 1, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MAPLE ts_fip_lih:=proc(n) local i, an, tren: an:=[ ]: for i from 2 to n do tren:=(ithprime(i)+ithprime(i+1))/2: if (tren mod 2 <> 0) then # an:=[ op(an), tren ]: an:=[ op(an), numtheory[mobius](tren) ]: fi: od: RETURN(an) end: ts_fip_lih(2000); CROSSREFS Cf. A008683. Sequence in context: A167392 A190201 A189702 * A278718 A130854 A165191 Adjacent sequences:  A168392 A168393 A168394 * A168396 A168397 A168398 KEYWORD sign AUTHOR Jani Melik, Nov 24 2009 STATUS approved

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Last modified May 16 15:55 EDT 2021. Contains 343949 sequences. (Running on oeis4.)