OFFSET
1,1
COMMENTS
The prime numbers in this sequence are of the form (56i-23+gap) with i=(level(n)+1)/2, level(n) defined in A117563.
LINKS
Remi Eismann, Table of n, a(n) for n = 1..10000
FORMULA
A117078 : a(n) = smallest k such that prime(n+1) = prime(n) + (prime(n) mod k), or 0 if no such k exists. prime(n) for which k=23.
EXAMPLE
a(1) = prime(115) = 631 because prime(116) = prime(115) + (prime(115) mod 53) = 641
g(n) = 641 - 631 = 10
Prime(115) + 23 - 10 = 644, 644/46 = 14
CROSSREFS
KEYWORD
nonn
AUTHOR
Rémi Eismann, May 27 2006, May 04 2007
STATUS
approved