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Search: id:A153580
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A153580 Numbers of A083737 which are neither 1 nor Carmichael numbers A002997 +0
3
721801, 873181, 4504501, 8646121, 9006401, 9863461, 10403641, 12322133, 14609401, 15913261, 18595801, 18736381, 20234341, 21397381, 22066201, 22369621, 22885129, 25326001, 25696133, 28312921, 36307981, 42702661 (list; graph; listen)
OFFSET

1,1

MATHEMATICA

Select[Range[5*10^7], ! PrimeQ[ # ] && PowerMod[2, # - 1, # ] == 1 && PowerMod[3, # - 1, # ] == 1 && PowerMod[5, # - 1, # ] == 1 && Mod[ #, CarmichaelLambda[ # ]] != 1 &] (*Ray Chandler*)

CROSSREFS

A002997, A083737, A122780, A153508, A153513, A153514, A153515, A153519, A153581

Sequence in context: A114675 A102501 A015346 this_sequence A153581 A100383 A156867

Adjacent sequences: A153577 A153578 A153579 this_sequence A153581 A153582 A153583

KEYWORD

nonn

AUTHOR

Ray Chandler & Artur Jasinski (grafix(AT)csl.pl), Dec 28 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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