38590

Appears in sequences

• a(n)-th and (a(n)+1)-st primes are the first pair of primes that differ by exactly 2n; a(n) = -1 if no such pair of primes exists.at n=41A038664
• First occurrence of just n semiprimes occurs between the a(n)-th prime and the next prime.at n=25A103669
• a(n) = Sum_{i=n..n+3} Sum_{j=i+1..n+4} prime(i)*prime(j).at n=15A127350
• Least number x such that there are n numbers of the form 6k-1 or 6k+1 between prime(x) and prime(x+1).at n=27A213903
• a(n)=position of the first occurrence of a local maximum equal to 2n in A001223, n>1.at n=40A286729
• Total number of parts which are powers of 2 in all partitions of n.at n=30A342230
• Products of four distinct primes between sphenic numbers (products of 3 distinct primes).at n=36A351382
• a(n) is the least k such that there are exactly n integers between (1/6)*prime(k) and (1/6)*prime(k+1).at n=13A390787