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A057330 First member of a prime n-tuplet in a 2p-1 progression. 22
2, 2, 2, 1531, 1531, 16651, 16651, 15514861, 857095381, 205528443121, 1389122693971, 216857744866621, 758083947856951, 69257563144280941, 69257563144280941, 3203000719597029781 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Initial terms of A000040, A005382, A057326, A057327, A057328, A057329.
LINKS
Tony Forbes, Cunningham Chain of length 16, Dec 05 1997
CROSSREFS
See also A005603. Cf. A179866.
Sequence in context: A066736 A324302 A216668 * A207820 A186069 A280842
KEYWORD
nonn,nice,more
AUTHOR
Patrick De Geest, Aug 15 2000
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
STATUS
approved

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Last modified March 29 02:23 EDT 2024. Contains 371264 sequences. (Running on oeis4.)