A066928 Numbers k such that floor(k*log(k)) is prime.

3, 4, 7, 9, 10, 12, 20, 29, 65, 67, 72, 73, 86, 93, 97, 98, 107, 117, 140, 143, 146, 147, 148, 150, 151, 153, 156, 182, 183, 186, 192, 194, 205, 206, 207, 211, 227, 228, 235, 236, 241, 248, 249, 253, 259, 270, 273, 279, 283, 289, 292, 298, 325, 330, 347, 352

Offset

1,1

Links

Amiram Eldar, Table of n, a(n) for n = 1..10000 (terms 1..1000 from Harry J. Smith)

Mathematica

Select[Range[400], PrimeQ[Floor[# * Log[#]]] &] (* Amiram Eldar, May 23 2022 *)

Prog

(PARI) { n=0; for (m=1, 10^10, if (isprime(floor(m*log(m))), write("b066928.txt", n++, " ", m); if (n==1000, return)) ) } \\ Harry J. Smith, Apr 07 2010

Crossrefs

Sequence in context: A344416 A330178 A059010 * A032726 A029739 A005098

Adjacent sequences: A066925 A066926 A066927 * A066929 A066930 A066931

Keyword

nonn

Author

Benoit Cloitre, Jan 23 2002

Status

approved