A291991 Primes of the form Phi(k, -9), where Phi is the cyclotomic polynomial.
73, 530713, 6481, 47763361, 42521761, 150094634909578633, 13490012358249728401, 282429005041, 19966781110160346782368664772328944885905284750420567849, 1076050302914923449767311155851656076154481
Offset: 1
Keywords
Links
Crossrefs
Cf. A138921.
Programs
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Mathematica
Select[Table[Cyclotomic[k,-9], {k, 0, 100}], PrimeQ[#] &]