73477

Properties

Appears in sequences

• Numbers k such that 35^k - 34^k is prime.at n=6A062601
• a(n) = n^4 - 10n^3 + 35n^2 - 48n + 23.at n=18A137864
• a(n) = number of distinct prime divisors (taken together) of numbers of the form 2x^2+1 for x<=10^n.at n=4A144851
• Number of n X n binary arrays with all ones connected only in a 1010-1111-1000 pattern in any orientation.at n=7A146642
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1010-1111-1000 pattern in any orientation.at n=16A146644
• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1010-1111-1000 pattern in any orientation.at n=17A146644
• Primes of form 3*p*(p-1)+1 with p also a prime.at n=14A165683
• Primes having only {3, 4, 7} as digits.at n=42A199347
• Primes p=u^2+v^2 such that p+u or p+v is the next prime after p.at n=42A213996
• Primes of the form p^2 + (q-p)^2, where p and q are consecutive primes.at n=10A224888
• a(n) = smallest prime q > a(n-1) such that 2*prime(n)*q^prime(n)+1 is also prime.at n=22A225747
• Primes p such that p^4-p^3+1 and p^4-p^3-1 are also primes.at n=30A238136
• Primes of the form 157^k - 156^k.at n=1A255388
• First member of the least set of 4 consecutive primes such that the sum of each pair of consecutive primes in this set is a multiple of n.at n=39A382699
• Prime numbersat n=7256