77563

Properties

Appears in sequences

• Third term of balanced prime quartets: p(m-1)-p(m-2) = p(m)-p(m-1) = p(m+1)-p(m).at n=27A054802
• Primes p such that there are positive integers m and n and a prime q such that p = m^2+m-q = n^2+n+q.at n=36A162652
• Primes of the form ((p-1)/2)^2+((p+1)/2), where p is prime.at n=37A163418
• Noncomposite numbers in the southwestern ray of the Ulam spiral as oriented on the March 1964 cover of Scientific American.at n=32A168026
• a(n) = 1 - 2*n^2 + 4*n*(1 + 2*n^2)/3.at n=31A168547
• Primes of the form n^2 + n + 1, where n is semiprime.at n=22A193144
• Floor( 10^n / sum(k=3..10^n, 1/k ) ).at n=5A202766
• Prime numbersat n=7622