39359

Properties

Appears in sequences

• Primes p such that p+7 == 0 (mod phi(p+7)).at n=31A067606
• Sum of products of parts increased by 1 in all partitions of n.at n=12A074141
• a(n) = 8 + floor((2 + Sum_{j=1..n-1} a(j))/4).at n=38A120166
• a(0)=a(1)=1; for n>1, a(n) = 2*a(n-1) + 1 if a(n-1) and n are coprime, otherwise a(n) = a(n-1)/gcd(a(n-1),n).at n=32A133580
• Primes p such that (p-7)/8 and 8p + 7 are both prime.at n=34A158238
• Primes of the form 6n^2 - 7.at n=31A201792
• Number of distinct values of the sum of 3 products of three 0..n integers.at n=24A225260
• Primes p such that p^4 + p +/- 1 are twin primes.at n=18A236951
• Lexicographically largest increasing sequence of primes for which the continued square root map (see A257574) produces Pi.at n=28A257582
• Primes having only {3, 5, 9} as digits.at n=33A260227
• Upper ends of record gaps between numbers that are either primes or semiprimes.at n=8A275014
• Greater number in the least prime-semiprime gap of size n.at n=15A278404
• a(n) = Sum_{k=1..n} floor(n^3/k^3).at n=31A344675
• Emirps p such that if q is the next emirp after p, 2*q-p is also an emirp.at n=39A350852
• a(n) is the least prime p that starts a run of 2n+1 consecutive primes whose product is a sum of the same number of (others or same) consecutive primes.at n=13A352065
• Emirps that can be written as p*q+p+q where p and q are emirps.at n=14A352249
• Prime numbersat n=4143