1319945

Appears in sequences

• Indices of primes where largest gap occurs.at n=23A005669
• Values of k that show the slow decrease in the larger values of the Andrica function Af(k) = sqrt(p(k+1)) - sqrt(p(k)), where p(k) denotes the k-th prime.at n=30A084976
• Indices of primes where nondecreasing gaps occur.at n=42A085500
• First occurrence of just n semiprimes occurs between the a(n)-th prime and the next prime.at n=47A103669
• Numbers k such that difference between k-th prime and next prime is 210.at n=0A116495
• Index of the primes of A205827, A000720(A205827(n)).at n=15A214935
• Indices (i.e., value of A000720 = primepi) of primes in A111870.at n=14A241542
• Numbers k such that A182134(k)=2, i.e., there exist only two primes p with prime(k) < p < prime(k)^(1+1/k).at n=21A246782
• a(n) is the index k of prime(k), such that abs(prime(k) - Sum_{j=k-2..k+2} prime(j)/5) sets a new record.at n=29A337438
• a(n) is the index k of prime(k), such that abs(prime(k) - Sum_{j=k-1..k+1} prime(j)/3) sets a new record.at n=24A337488