OFFSET
1,1
COMMENTS
The smallest distance between 14-twins [A052380(7)] is 18 and its minimal increment is 6.
FORMULA
a(n)=p is the first prime initiating [p, p+14, p+6n+12, p+6n+12+14] quadruple and prime difference pattern of [14, 6n-2, 14].
EXAMPLE
n=2 results in [293,307,317,331] p-pattern and [14,24,14] d-pattern with 2 further primes (311 and 313) in the central gap.
CROSSREFS
KEYWORD
nonn
AUTHOR
Labos Elemer, Mar 07 2000
STATUS
approved