OFFSET
1,1
COMMENTS
If n is even and n > 38, at least one of (n-15), (n-25), (n-35) is an odd number divisible by 3 and greater than 3. So every even number > 38 is a term. [Jack Brennen]
EXAMPLE
40 can be represented as 15+25 where 15 and 25 are both composite numbers, so 40 is a term.
PROG
(PARI) v=vector(5000); vc=1; forstep (n=9, 300, 2, if (isprime(n), continue, forstep (j=9, 300, 2, if (isprime(j), continue, x=n+j; fl=true; for (i=1, vc, if (v[i]==x, fl=false; break)); if (fl==true, v[vc]=x; vc++))))); print(vc); v=vecsort(vecextract(v, concat("1..", vc-1)))
CROSSREFS
KEYWORD
nonn
AUTHOR
Jon Perry, Nov 14 2002
EXTENSIONS
Corrected by Don Reble, Nov 20 2006
STATUS
approved