41201

Properties

Appears in sequences

• n written in fractional base 7/4.at n=50A024641
• Numbers n such that (19^n + 1)/20 is a prime.at n=8A057185
• Primes of the form (prime(prime(k)) + prime(prime(k+1)))/2.at n=30A098042
• Lesser of twin primes (p,q=p+2) such that p*q-p-q and p*q+p+q are primes.at n=6A126334
• Primes where the first digit equals the sum of all the other digits.at n=28A156307
• Upper bound arising in Hadwiger's conjecture.at n=5A159484
• Primes obtained from other primes by prefixing a 4.at n=39A165444
• Incorrect duplicate of A062343.at n=35A176254
• Primes p such that reversal(p) - 13 is a square.at n=31A176371
• Primes of the form (n^2+1)/26.at n=28A208292
• Prime p such that p and p+2 are twin primes and p^2+p-1 p^2+p+1 are also twin primes.at n=12A228968
• Primes such that prime plus its digit sum is a perfect square.at n=18A230087
• Primes p such that p+2 is prime with prime(p+2)-prime(p)=6.at n=20A261533
• Least prime factor of (4^(2n+1)+1)/5, a(0) = 1.at n=51A299959
• Sum of the fourth largest parts of the partitions of n into 9 parts.at n=46A326470
• Lesser of twin primes p, p+2 such that prime(p) and prime(p+2) are also twin primes.at n=26A332968
• Prime numbersat n=4312