OFFSET
1,1
LINKS
Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences
H. Mishima, Sporadic tridigital solutions
FORMULA
a(n) = A053950(n)^2.
CROSSREFS
KEYWORD
nonn,base,more
AUTHOR
Patrick De Geest, Mar 15 2000
EXTENSIONS
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005
One more term from Mishima's webpage added by Max Alekseyev, Jan 28 2012
a(11) from Zhao Hui Du, Mar 10 2024
STATUS
approved