OFFSET
2,1
EXAMPLE
a(5) = 13001 because the smallest 5-digit prime quadruplet is {13001, 13003, 13007, 13009}
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Julien Peter Benney (jpbenney(AT)gmail.com), Feb 23 2008
EXTENSIONS
a(9)-a(18) from Donovan Johnson, May 23 2010
STATUS
approved