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A064254
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Values of n such that N=(an+1)(bn+1)(cn+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,35.
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1
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576, 1626, 2466, 4356, 4566, 7296, 11496, 15276, 16746, 18636, 20106, 20946, 24096, 28926, 38376, 44256, 57486, 74286, 78696, 95916, 98226, 99906, 100746, 101376, 122166, 127206, 128046, 128676, 136656, 141906, 149256, 152406, 153456, 158076, 172146, 179496, 180546
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OFFSET
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1,1
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COMMENTS
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an+1, bn+1, cn+1 are primes and an | (N-1), bn | (N-1), cn |(N-1).
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REFERENCES
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Harvey Dubner (harvey(AT)dubner.com), personal communication, Jun 27 2001.
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LINKS
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MATHEMATICA
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carmQ[n_] := CompositeQ[n] && Divisible[n - 1, CarmichaelLambda[n]]; Select[Range[10^5], AllTrue[(v = {1, 2, 35}*# + 1), PrimeQ] && carmQ[Times @@ v] &] (* Amiram Eldar, Oct 17 2019 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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