A153580 Terms of A083737 which are not Carmichael numbers (A002997).

721801, 873181, 4504501, 8646121, 9006401, 9863461, 10403641, 12322133, 14609401, 15913261, 18595801, 18736381, 20234341, 21397381, 22066201, 22369621, 22885129, 25326001, 25696133, 28312921, 36307981, 42702661

Offset: 1

Author

Ray Chandler & Artur Jasinski, Dec 28 2008

Keywords

• nonn

Links

• Amiram Eldar, Table of n, a(n) for n = 1..2871 (calculated from the b-file at A083737)

Crossrefs

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

Programs

Mathematica

Select[Range[5*10^7], ! PrimeQ[ # ] && PowerMod[2, # - 1, # ] == 1 && PowerMod[3, # - 1, # ] == 1 && PowerMod[5, # - 1, # ] == 1 && Mod[ #, CarmichaelLambda[ # ]] != 1 &] (* Ray Chandler, Dec 28 2008 *)