OFFSET
1,2
COMMENTS
It appears that a(n) is divisible by 15 for all n >= 11. - Dmitry Kamenetsky, Apr 29 2023
LINKS
Klaus Brockhaus, Table of n, a(n) for n = 1..106 [changed by Georg Fischer, Apr 03 2024]
CROSSREFS
KEYWORD
nonn
AUTHOR
Klaus Brockhaus, Nov 20 2007
EXTENSIONS
a(2)=2 removed by Georg Fischer, Apr 03 2024
STATUS
approved