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A076772 Even numbers n representable as the sum of 2 coprime odd composites. 0
34, 44, 46, 52, 58, 62, 64, 68, 74, 76, 82, 86, 88, 92, 94, 98, 100, 102, 104, 106, 112, 114, 116, 118, 122, 124, 128, 130, 134, 136, 142, 144, 146, 148, 152, 154, 156, 158, 160, 162, 164, 166, 168, 170, 172, 174, 176, 178, 182, 184, 186, 188, 190, 192, 194 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

As the comment in A096076 indicates, 210 is the largest even number not in this sequence. - Franklin T. Adams-Watters, Sep 07 2006

LINKS

Table of n, a(n) for n=0..54.

EXAMPLE

34=25+9

PROG

(PARI) v=vector(5000); vc=1; forstep (n=9, 300, 2, if (isprime(n), continue, forstep (j=9, 300, 2, if (gcd(n, j)==1, 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

Cf. A096076.

Sequence in context: A043240 A044020 A217276 * A248527 A206262 A302457

Adjacent sequences:  A076769 A076770 A076771 * A076773 A076774 A076775

KEYWORD

nonn

AUTHOR

Jon Perry, Nov 14 2002

STATUS

approved

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Last modified December 1 11:30 EST 2021. Contains 349429 sequences. (Running on oeis4.)