OFFSET
1,1
COMMENTS
The first term having a repeated digit is 1004976528.
LINKS
Colin Barker, Table of n, a(n) for n = 1..1500
PROG
(PARI) s=[]; for(n=0, 40000, if(#vecsort(eval(Vec(Str(n*(n+1)/2))), , 8)==9, s=concat(s, n*(n+1)/2))); s
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Colin Barker, Apr 28 2014
STATUS
approved