A102540 Primes that are not Chen primes (see A109611).

43, 61, 73, 79, 97, 103, 151, 163, 173, 193, 223, 229, 241, 271, 277, 283, 313, 331, 349, 367, 373, 383, 397, 421, 433, 439, 457, 463, 523, 547, 593, 601, 607, 613, 619, 643, 661, 673, 691, 709, 727, 733, 739, 757, 773, 823, 853, 859, 883, 907, 929, 967, 997

Offset

1,1

Links

Donovan Johnson, Table of n, a(n) for n = 1..1000

Eric Weisstein's World of Mathematics, Chen Prime

Prog

(PARI) n=0; for(j=1, 1994, if(bigomega(prime(j)+2)>2, n++; write("b102540.txt", n " " prime(j)))) /* Donovan Johnson, Apr 29 2013 */

Crossrefs

Sequence in context: A215538 A235149 A064508 * A063641 A129928 A317393

Adjacent sequences: A102537 A102538 A102539 * A102541 A102542 A102543

Keyword

nonn

Author

Wilfredo Lopez (chakotay147138274(AT)yahoo.com), Aug 14 2005

Extensions

More terms from Robert Happelberg (roberthappelberg(AT)yahoo.com), Aug 16 2005

Status

approved