OFFSET
1,1
EXAMPLE
The group of primes from 53 to 73 is in the sequence, because they are between 48 and 75.
The group of primes from 149 to 193 is in the sequence, because they are between 140 and 195.
CROSSREFS
KEYWORD
nonn,less
AUTHOR
Juri-Stepan Gerasimov, Oct 13 2009
EXTENSIONS
1063 inserted by R. J. Mathar, Oct 21 2009
STATUS
approved