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

Author

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

Keywords

• nonn

Links

• Donovan Johnson, Table of n, a(n) for n = 1..1000
• Eric Weisstein's World of Mathematics, Chen Prime

Programs

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 */

Extensions

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