442367

Properties

Appears in sequences

• Class 1+ primes: primes of the form 2^i*3^j - 1 with i, j >= 0.at n=37A005105
• a(1) = 1. For n>1, let x = a(n-1)+1; then a(n) is the first prime in the sequence 2*x-1, 2*x-3, 4*x-1, 4*x-3, 8*x-1, 8*x-3, ..., (2^k)*x-1, (2^k)*x-3, ...at n=10A083201
• (Product of successive primes minus 2) divided by 3 is prime.at n=22A124670
• Primes of the form 4*k^3 - 1.at n=12A199367
• Primes of the form 2^i * 3^j - 1 for positive i, j.at n=30A268640
• Primes with a prime number of binary digits, and with a prime number of 1's and a prime number of 0's.at n=22A272478
• Primes (p*(p+2)-2)/3 for p in A339503.at n=13A339504
• Prime numbersat n=37126