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A078877 Nonprimes in A078447. 0
1, 689, 15229, 20569, 24139, 43531, 44377, 47077, 47941, 66767, 73441, 80419, 86447, 117739, 164783, 175793, 192433, 194321, 196283, 261853, 282533, 302083, 316933, 319373, 372091, 380431, 414863, 429713, 444361, 450613, 456853, 472547 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..32.

PROG

(PARI) {s=[1]; for(n=2, 335, a=s[n-1]; if(!isprime(a), print1(a, ", ")); s=[a+1]; for(j=2, n, k=s[j-1]+1; c=1; while(c>0, b=1; for(i=1, matsize(s)[2], if(gcd(k, s[i])>1, b=0)); if(b==0, k++, c=0)); s=concat(s, k)))}

CROSSREFS

Cf. A078447, A078448.

Sequence in context: A204153 A204146 A259512 * A204145 A284284 A115177

Adjacent sequences:  A078874 A078875 A078876 * A078878 A078879 A078880

KEYWORD

nonn

AUTHOR

Klaus Brockhaus, Dec 10 2002

STATUS

approved

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Last modified June 5 09:06 EDT 2020. Contains 334829 sequences. (Running on oeis4.)