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 A261438 a(n) is the smallest prime having exactly n consecutive primitive roots. 3
 2, 5, 11, 37, 53, 89, 83, 347, 269, 563, 467, 1187, 1907, 4007, 1559, 8363, 7727, 6803, 20327, 45119, 10559, 35279, 116639, 68903, 136223, 217367, 38639, 416387, 250799, 616103, 1308863, 998423, 661049, 4201073, 618719, 1815707, 4446119, 20227133, 701399 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Sequence is not monotonic. a(49) = 71369489, a(51) = 17635679, a(57) = 48796439 and a(59) = 75720089. a(48) > 10^8. - Hiroaki Yamanouchi, Aug 22 2015 LINKS Hiroaki Yamanouchi, Table of n, a(n) for n = 1..47 CROSSREFS Cf. A261388. See A268397 for another version. Sequence in context: A112600 A156014 A268397 * A092298 A074497 A131581 Adjacent sequences: A261435 A261436 A261437 * A261439 A261440 A261441 KEYWORD nonn AUTHOR Joerg Arndt, Aug 18 2015 EXTENSIONS a(23)-a(39) from Hiroaki Yamanouchi, Aug 22 2015 STATUS approved

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Last modified July 25 08:40 EDT 2024. Contains 374586 sequences. (Running on oeis4.)