A211184 Numbers k such that (k+1)^11 - k^11 is prime.

5, 7, 9, 13, 34, 40, 63, 69, 85, 168, 170, 183, 207, 223, 247, 275, 291, 306, 322, 337, 344, 352, 381, 391, 397, 400, 404, 469, 473, 492, 570, 574, 579, 590, 597, 673, 680, 696, 736, 764, 786, 805, 827, 890, 915, 947, 1006, 1023, 1025, 1039

Offset: 1

Author

Vladimir Pletser, Feb 02 2013

Keywords

• nonn
• easy

Links

• Vladimir Pletser, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A008455 (11th powers), A189055 (resulting primes).

Programs

Mathematica

Select[Range[1000], PrimeQ[(# + 1)^11 - #^11] &] (* T. D. Noe, Feb 04 2013 *)

PARI

isok(k) = isprime((k+1)^11 - k^11); \\ Michel Marcus, Mar 12 2022