84011

Properties

Appears in sequences

• a(n) = prime(2^n - 1).at n=12A051438
• Primes p from A031924 such that A052180(primepi(p)) = 29.at n=28A052236
• a(n) = k-th prime, where k = n-th Mersenne prime = A000668(n).at n=4A113936
• Number of iterations before a repeated value, or -1 if this never occurs, when starting at k = 1 and repeating k = k*n if k does not contain any adjacent equal digits, else k = k with all adjacent equal digits replaced by a single copy of the same digit.at n=36A368940
• Prime numbersat n=8191