OFFSET
0,1
COMMENTS
For n>0, a(n) = arithmetic mean of the smallest pair of two consecutive primes with a difference 2n.
FORMULA
a(n) = A000230(n)+n. - David Wasserman, May 24 2005
EXAMPLE
a(5) = 144 as 139 and 149 both are prime and all numbers from 140 to 148 are composite.
CROSSREFS
KEYWORD
nonn
AUTHOR
Amarnath Murthy, Sep 09 2003
EXTENSIONS
More terms from David Wasserman, May 24 2005
Edited by Franklin T. Adams-Watters, Oct 26 2006
STATUS
approved