A062611 Numbers k such that 45^k - 44^k is prime or a strong pseudoprime.

2, 5, 151, 223, 313, 1277, 8447

Offset

1,1

Comments

a(8) > 10^5. - Robert Price, Jan 02 2013

Links

Table of n, a(n) for n=1..7.

Prog

(PARI) forprime(n=1, 9999, ispseudoprime(45^n-44^n)&print1(n", ")) \\ - M. F. Hasler, Sep 21 2013

Crossrefs

Cf. A000043, A057468, A059801-A059803, A062572-A062609, A215632, A062612-A062666.

Sequence in context: A069139 A155762 A307480 * A263413 A270585 A041505

Adjacent sequences: A062608 A062609 A062610 * A062612 A062613 A062614

Keyword

nonn,hard

Author

Mike Oakes, May 18 2001, May 19 2001

Extensions

Edited by M. F. Hasler, Sep 21 2013

Status

approved