login
A364564
Largest prime factor computed for those odd numbers k for which A156552(k) < k.
4
1, 3, 5, 3, 5, 7, 5, 3, 7, 5, 7, 11, 7, 5, 11, 3, 13, 11, 7, 11, 5, 5, 13, 7, 11, 13, 7, 17, 7, 13, 17, 5, 11, 3, 7, 13, 11, 17, 11, 7, 19, 13, 7, 13, 17, 11, 5, 11, 5, 17, 13, 7, 13, 11, 13, 7, 11, 17, 7, 13, 17, 11, 5, 19, 13, 17, 19, 5, 11, 13, 3, 7, 19, 17, 13, 11, 17, 13, 11, 17, 7, 11, 19, 17, 7, 19, 13, 13
OFFSET
1,2
COMMENTS
These primes must stay reasonably small, but how small?
See also the example section of A364551.
LINKS
FORMULA
a(n) = A006530(A364561(n)).
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jul 28 2023
STATUS
approved