A057330 First member of a prime n-tuplet in a 2p-1 progression.
2, 2, 2, 1531, 1531, 16651, 16651, 15514861, 857095381, 205528443121, 1389122693971, 216857744866621, 758083947856951, 69257563144280941, 69257563144280941, 3203000719597029781
Offset: 1
Links
- Dirk Augustin, Smallest existing Cunningham Chains of given length
- Chris Caldwell, The Prime Glossary: Cunningham chain
- Tony Forbes, Cunningham Chain of length 16, Dec 05 1997
- Index entries for sequences related to primes in arithmetic progressions
Extensions
More terms from Jean Gaumont (jeangaum87(AT)yahoo.com), Apr 16 2006
Offset corrected by Max Alekseyev, May 07 2009
a(16) found by Tony Forbes, added by Jens Kruse Andersen, Jun 14 2014
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