A244389 Numbers k such that 1 + k + k^3 + k^5 + k^7 + k^9 + ... + k^53 is prime.

110, 130, 214, 258, 282, 392, 474, 522, 546, 676, 734, 856, 1096, 1116, 1186, 1192, 1376, 1446, 1540, 1552, 1558, 1804, 2032, 2100, 2154, 2474, 2614, 2848, 3092, 4550, 4932, 5000, 5354, 5554, 5604, 5878, 5996, 6136, 6410, 6648

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..430

Mathematica

Select[Range[10000], PrimeQ[Total[#^Range[1, 53, 2]] + 1]&]

Prog

(Magma) [n: n in [0..7000] | IsPrime(s) where s is 1+&+[n^i: i in [1..53 by 2]]];

Crossrefs

Cf. similar sequences listed in A244376.

Sequence in context: A114068 A073494 A073488 * A176879 A039447 A345386

Adjacent sequences: A244386 A244387 A244388 * A244390 A244391 A244392

Keyword

nonn,easy

Author

Vincenzo Librandi, Jun 27 2014

Status

approved