OFFSET
1,1
COMMENTS
Conjecture: For n > 4 the last term of the n-th group is 2p where p is the largest prime in the (n-1)th group. And these are the Bertrand primes.
EXAMPLE
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Dec 13 2003
EXTENSIONS
Edited by Mohammed Bouayoun (bouyao(AT)wanadoo.fr), Mar 05 2004
STATUS
approved