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 A235864 G-Lehmer numbers: Composite number n such that A060968(n) divides A201629(n). 1
 15, 143, 255, 385, 3599, 5183, 11663, 32399, 34561, 36863, 51983, 57599, 65535, 97343, 121103, 147455, 176399, 186623, 195841, 359999, 435599, 685583, 1034881, 1040399, 1065023, 1192463, 1327103, 1742399 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Jose María Grau, A. M. Oller-Marcen, Manuel Rodriguez and D. Sadornil, Fermat test with Gaussian base and Gaussian pseudoprimes, arXiv:1401.4708 [math.NT], 2014. MATHEMATICA fa=FactorInteger; phi[p_, s_] := Which[Mod[p, 4] == 1, p^(s-1)*(p-1), Mod[p, 4]==3, p^(s-1)*(p+1), s==1, 2, True, 2^(s+1)]; phi[1]=1; phi[n_] := Product[phi[fa[n][[i, 1]], fa[n][[i, 2]]], {i, Length[fa[n]]}]; Select[Range[1000], IntegerQ[FU[#]/phi[#]] && PrimeQ[#] == False &] CROSSREFS Cf. A060968, A201629, A235863, A182140. Sequence in context: A252825 A279921 A179524 * A177065 A173406 A291619 Adjacent sequences:  A235861 A235862 A235863 * A235865 A235866 A235867 KEYWORD nonn AUTHOR José María Grau Ribas, Jan 16 2014 STATUS approved

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Last modified January 23 23:01 EST 2022. Contains 350515 sequences. (Running on oeis4.)