A092064 Prime numbers in A092063.

2, 3, 7, 19, 31, 79, 89, 137, 149, 181, 6151, 14221, 25763

Offset

1,1

Comments

6151 corresponds to a probable prime. - Jason Yuen, Aug 25 2024

Links

Table of n, a(n) for n=1..13.

Prog

(PARI) A120271(n) = numerator(sum(k=1, n, 1/(prime(k)-1)));
for (i=1, 500, if(isprime(i) && isprime(A120271(i)), print1(i, ", ")));

Crossrefs

Cf. A092063, A120271.

Sequence in context: A244638 A113165 A128025 * A152609 A298943 A340281

Adjacent sequences: A092061 A092062 A092063 * A092065 A092066 A092067

Keyword

hard,nonn,more

Author

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

Extensions

a(11) from Jason Yuen, Aug 25 2024

a(12)-a(13) from Michael S. Branicky, Oct 07 2025

Status

approved