

A152963


Beginnings of maximal chains of primes with seven members (six links).


7




OFFSET

1,1


COMMENTS

For definitions see A152658, of which this is a subsequence.


LINKS

Table of n, a(n) for n=1..5.


EXAMPLE

First maximal chain of primes with seven members is 2153, 2161, 2179, 2203, 2207, 2213, 2221; the six linking primes are 1404211, 1417019, 1435117, 1448687, 1456393, 1465441.


CROSSREFS

Cf. A152658 (beginnings of maximal chains of primes), A152962 (beginning of the first maximal chain of primes with n links), A152735 (count of links in nth maximal chain of primes), A119487 (primes of the form i*(ith prime) + (i+1)*((i+1)th prime), linking primes), A152865, A152866, A152867, A152868, A152869, A152964.
Sequence in context: A236150 A252126 A192771 * A179698 A075702 A205629
Adjacent sequences: A152960 A152961 A152962 * A152964 A152965 A152966


KEYWORD

hard,more,nonn


AUTHOR

Klaus Brockhaus, Dec 16 2008


STATUS

approved



