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A241792
Triangular numbers which have one or more occurrences of exactly nine different digits.
7
102738945, 120784653, 120893475, 124875306, 126794850, 129854670, 137904528, 142087653, 143287056, 147069825, 149826705, 152783940, 153694278, 160249753, 162495378, 168370425, 173249805, 189725460, 192540876, 193405278, 197438256, 207193546, 230469715
OFFSET
1,1
COMMENTS
The first term having a repeated digit is 1004976528.
LINKS
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
KEYWORD
nonn,base
AUTHOR
Colin Barker, Apr 28 2014
STATUS
approved