205528443121
domain: N
Appears in sequences
- Smallest prime beginning a complete Cunningham chain (of the second kind) of length n.at n=9A005603
- First member of a prime n-tuplet in a 2p-1 progression.at n=9A057330
- Smallest prime p such that the infinite sequence {p, p'=2p-1, p''=2p'-1, ...} begins with a string of exactly n primes.at n=9A064812
- Duplicate of A005603.at n=9A109828