OFFSET
1,1
LINKS
Patrick De Geest, Squares containing at most three distinct digits, Index entries for related sequences
Patrick De Geest, Palindromic Squares
H. Mishima, Squares consisted of 3 different digits.
Eric Weisstein's World of Mathematics, Square Number.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
One more term from Jon E. Schoenfield, Sep 04 2006
More terms from Herman Jamke (hermanjamke(AT)fastmail.fm), May 19 2007
Title improved by Sean A. Irvine, Nov 24 2019
a(12)-a(13) from Zhao Hui Du, Mar 09 2024
STATUS
approved