1336613

Properties

Appears in sequences

• a(n) = a(n-1) + a(n-2) - [a(n-3)/4] - [a(n-4)/2] - [a(n-5)/4].at n=47A173564
• Primes p such that A066272(p)*p+1 is also prime, where A066272 is the number of anti-divisors.at n=22A209271
• Primes p such that 2p-1 is a square and 2p+1 is also prime.at n=24A386995
• Prime numbersat n=102613