[go: up one dir, main page]

login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A019398
Primes with primitive root 75.
1
2, 7, 17, 31, 41, 53, 79, 89, 101, 103, 113, 137, 149, 163, 173, 197, 199, 211, 223, 233, 257, 269, 271, 281, 283, 293, 307, 317, 353, 379, 389, 401, 439, 449, 463, 487, 499, 509, 523, 547, 557, 569, 593, 617, 619, 631, 641, 653, 677, 691, 727, 739, 773, 787, 797, 809
OFFSET
1,1
MATHEMATICA
pr=75; Select[Prime[Range[200]], MultiplicativeOrder[pr, # ] == #-1 &]
Join[{2, 7, 17, 31, 41, 53}, Select[Prime[Range[200]], MemberQ[ PrimitiveRootList[ #], 75]&]] (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Nov 15 2020 *)
CROSSREFS
Sequence in context: A024920 A091313 A049554 * A086513 A166381 A083723
KEYWORD
nonn
STATUS
approved