

A120313


a(n) = Product of k primes in arithmetic progression with common difference 6, otherwise a(n) = prime(n).


0



2, 3, 623645, 124729, 11339, 19, 667, 29, 49321, 1591, 43, 146969, 3127, 59, 23569729, 386389, 71, 5767
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


LINKS



EXAMPLE

a(2) = 3 because 3+6 = 9 and is not prime;
a(3) = 623645 = 5*11*17*23*29 and the common difference between successive primes is 6.


CROSSREFS



KEYWORD

nonn


AUTHOR



STATUS

approved



