

A102540


Primes that are not Chen primes (see A109611).


9



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
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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 A253848
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



