37663

Properties

Appears in sequences

• Primes which can be represented as the sum of a prime and its reverse.at n=32A072385
• Primes p such that q-p = 28, where q is the next prime after p.at n=28A124595
• Primes derived from A116516.at n=5A125515
• Number of permutations of length n which avoid the patterns 2341 and 3421.at n=9A165545
• Primes p of the form m^2 + 27.at n=27A227622
• Primes p such that p + 4, p + 16, p + 64, p + 256 and p + 1024 are all semiprimes.at n=34A241493
• a(n) is the smallest start of a run of exactly n consecutive primes such that the sum of the digits of each prime is composite.at n=11A241525
• Number of partitions of n with difference -7 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=46A242685
• "Convex" primes: extremal primes in the sense of Tutaj.at n=29A246033
• Primes having only {3, 6, 7} as digits.at n=39A260380
• Convex hull primes, that is, prime numbers corresponding to the convex hull of PrimePi, the prime counting function.at n=34A319126
• Fold a square sheet of paper alternately vertically to the left and horizontally downwards; after each fold, draw a line along each inward crease; after n folds, the largest region in the resulting graph occupies a(n)/2^n of the whole sheet.at n=17A342764
• Numerators of the partial sums of 1/d(prime(k)+1), where d is the number of divisors function.at n=49A386921
• Primes p such that psi(p+1) = psi(p+2).at n=13A389278
• Prime numbersat n=3990