27077

Properties

Appears in sequences

• Primes of the form k^2 + (k+1)^2 + (k+2)^2 = 3*(k+1)^2+2.at n=13A027864
• Primes such that prime(p) +- pi(p) are simultaneously prime.at n=37A065117
• Smallest of six consecutive primes whose sum of digits is prime.at n=19A106719
• Smallest of seven consecutive primes the sum of the digits of each of which is prime.at n=9A106722
• a(n) = Sum_{k=1..n} k*sigma(k).at n=35A143128
• Primes p, with index k, such that p-k and p+k are both prime.at n=36A143794
• Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=10, k=0 and l=-1.at n=6A177167
• Number of parts in all partitions of n in which no part occurs more than twice.at n=38A185350
• Number of parts that are visible in one of the three views of the shell model of partitions version "Tree" with n shells.at n=34A194803
• Non-palindromic balanced primes in base 16.at n=33A256090
• Primes of the form 3n^2 + 2.at n=14A257163
• Primes having only {0, 2, 7} as digits.at n=17A261267
• First of three consecutive primes p,q,r such that r*(p+q) + p*q and r*(p+q) - p*q are prime.at n=43A358382
• Primes having only {0, 2, 4, 7} as digits.at n=35A386047
• Primes having only {0, 2, 5, 7} as digits.at n=35A386049
• Primes having only {0, 2, 6, 7} as digits.at n=35A386051
• Primes having only {0, 2, 7, 8} as digits.at n=36A386053
• Prime numbersat n=2970