A217076 Numbers n such that (n^37-1)/(n-1) is prime.

61, 77, 94, 97, 99, 113, 126, 130, 134, 147, 161, 172, 187, 202, 208, 246, 261, 273, 285, 302, 320, 432, 444, 503, 523, 525, 563, 666, 680, 709, 740, 757, 787, 902, 962, 964, 969, 1013, 1109, 1165, 1186, 1219, 1351, 1528, 1587, 1660, 1698, 1710, 1754, 1811, 1972

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[Range[2, 2000], PrimeQ[(#^37 - 1)/(# - 1)] &] (* T. D. Noe, Sep 26 2012 *)

Prog

(Magma) [n: n in [2..2000] |IsPrime((n^37 - 1) div (n - 1))]; // Vincenzo Librandi, Sep 28 2012
(PARI) is(n)=isprime((n^37-1)/(n-1)) \\ Charles R Greathouse IV, Feb 17 2017

Crossrefs

Cf. A002384, A049409, A100330, A162862, A217070-A217089.

Sequence in context: A339778 A328160 A118162 * A281960 A139931 A325076

Adjacent sequences: A217073 A217074 A217075 * A217077 A217078 A217079

Keyword

nonn,easy

Author

Tim Johannes Ohrtmann, Sep 26 2012

Extensions

More terms from T. D. Noe, Sep 26 2012

Status

approved