OFFSET
1,1
COMMENTS
EXAMPLE
a(5) = 4204024 is a palindromic multiple of a(4) = 24442 and contains two '2' and three '4', all the digits of a(4).
CROSSREFS
KEYWORD
nonn,base,more
AUTHOR
Chai Wah Wu, Mar 08 2021
EXTENSIONS
a(9) from Martin Ehrenstein, Mar 10 2021
STATUS
approved