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A092066 Prime numbers in A092065. 1
2, 3, 5, 7, 43, 131, 229, 257 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..8.

PROG

(PARI) f(n)= s=0; for(i=1, n, s=s+1/(prime(i)-i)); return(s); for (i=1, 500, if(isprime(i) && isprime(numerator(f(i))), print1(i, ", ")));

CROSSREFS

Sequence in context: A244556 A279954 A120804 * A224904 A028981 A223035

Adjacent sequences:  A092063 A092064 A092065 * A092067 A092068 A092069

KEYWORD

hard,nonn

AUTHOR

Mohammed Bouayoun (mohammed.bouayoun(AT)sanef.com), Feb 20 2004

STATUS

approved

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Last modified January 20 04:43 EST 2019. Contains 319323 sequences. (Running on oeis4.)