90073

Properties

Appears in sequences

• Penta-Primes. Prime Numbers n as a Sum of 5 consecutive prime numbers (four twin primes and single prime number in between) are primes.at n=18A138397
• G.f. A(x) satisfies: A(x) = 1 + x * A(x/(1 - x)^4) / (1 - x)^4.at n=7A351817
• Primes p which can be written as p = (A060735(k) +- next largest prime factor not in A060735(k)) for some k.at n=46A378018
• Numerators of the partial sums of the reciprocals of the sum of bi-unitary divisors function (A188999).at n=22A379615
• Primes containing the digit string "007" in their decimal representation.at n=25A386240
• Prime numbersat n=8725