Facepalm

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submitted 2 months ago by The_Picard_Maneuver@lemmy.world to c/facepalm@lemmy.world

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[–] platypode@sh.itjust.works 2 points 2 months ago

That’s exactly correct, assuming your sequence is numbers k such that phi(k) divides k+1, where phi is Euler's totient function