OFFSET
1,1
LINKS
Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences.
Hisanori Mishima, Sporadic tridigital solutions.
FORMULA
a(n) = A053944(n)^2. - Elmo R. Oliveira, Jul 17 2025
CROSSREFS
KEYWORD
nonn,base,more
AUTHOR
Patrick De Geest, Mar 15 2000
EXTENSIONS
One more term from Ryan H. Richter (bobort(AT)bigfoot.com), Jan 25 2001
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005
a(14)-a(15) from Mishima's website added by Elmo R. Oliveira, Jul 17 2025
STATUS
approved
