191351
domain: N
Appears in sequences
- Strong pseudoprimes to base 29.at n=33A020255
- Strong pseudoprimes to base 37.at n=35A020263
- Strong pseudoprimes to base 45.at n=29A020271
- Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 65 ones.at n=22A031833
- Composite numbers k such that k divides F(k-1) where F(j) are the Fibonacci numbers.at n=38A069106
- Numbers k that divide Fibonacci(k-1) but do not divide Fibonacci(k) - 1.at n=19A094410
- Semiprimes k that divide Fibonacci(k-1).at n=23A177086
- a(n) is the smallest k such that the p-rank of (Z/kZ)* is 2, where p = prime(n) and (Z/kZ)* is the multiplicative group of integers modulo n.at n=23A307434
- a(n) is the largest integer k such that A345073(k) = n.at n=5A345074