344293

Properties

Appears in sequences

• Indices of prime Lucas numbers.at n=52A001606
• Primes p such that floor(phi^p) is prime.at n=48A168033
• Primes p such that the least k with p+k and p+2k both prime sets a new record.at n=24A190423
• Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 7*b^2.at n=27A216537
• Numbers n such that the n-th Lucas number is prime, but cannot be written in the form a^2 + 3*b^2.at n=20A216555
• Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 2*b^2.at n=43A216562
• Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 5*b^2.at n=10A216563
• Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + b^2.at n=18A216567
• Numbers n such that the n-th Lucas number is prime, but cannot be written in the form a^2 + 6*b^2.at n=37A216572
• Numbers n such that the n-th Lucas number is prime and can be written in the form a^2 + 10*b^2.at n=25A216575
• Number of n X 5 0..1 arrays with rows and antidiagonals unimodal and columns nondecreasing.at n=17A224143
• Prime numbersat n=29529