OFFSET
1,1
COMMENTS
The first term having a repeated digit is 100489.
LINKS
Colin Barker, Table of n, a(n) for n = 1..1000
FORMULA
a(n) = A054033(n)^2.
EXAMPLE
30976 is in the sequence because 30976 = 176^2 and 30976 contains exactly five different digits: 0, 3, 6, 7 and 9.
PROG
(PARI) s=[]; for(n=1, 1200, if(#vecsort(eval(Vec(Str(n^2))), , 8)==5, s=concat(s, n^2))); s
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Colin Barker, Jan 15 2014
STATUS
approved