OFFSET
1,1
COMMENTS
No more terms through 10^9.
Any subsequent terms are > 10^11. - Lucas A. Brown, Aug 12 2024
LINKS
Lucas A. Brown, Python program.
EXAMPLE
The sum of the first 14 odd composites, when written in base 3, is the palindrome 201102, so 14 is in the sequence.
CROSSREFS
KEYWORD
nonn,base,hard,more
AUTHOR
Ryan Propper, May 12 2006
EXTENSIONS
a(19)-a(20) from Lucas A. Brown, Aug 12 2024
STATUS
approved