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 A241812 Triangular numbers which have one or more occurrences of exactly ten different digits. 7
 1062489753, 1239845706, 1256984730, 1520843976, 1539264870, 1597283460, 1684930275, 1952843760, 1957346028, 1978236450, 2197480365, 2367098415, 2418079653, 2503948761, 2634980715, 2718609453, 2735891406, 2750483196, 2764518903, 2854316790, 2915768430 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS The first term having a repeated digit is a(83) = 10075823946. Superset of A115940. - R. J. Mathar, May 02 2014 LINKS Charles R Greathouse IV, Table of n, a(n) for n = 1..10000 MATHEMATICA Select[Table[(n(n+1))/2, {n, 45000, 100000}], Min[DigitCount[#]]>0&] (* Harvey P. Dale, Jul 26 2014 *) PROG (PARI) s=[]; for(n=0, 100000, if(#vecsort(eval(Vec(Str(n*(n+1)/2))), , 8)==10, s=concat(s, n*(n+1)/2))); s CROSSREFS Cf. A045914, A062691, A162304, A241787, A241788, A241789, A241790, A241791, A241792, A000217. Sequence in context: A051020 A221262 A115940 * A049446 A322684 A322694 Adjacent sequences:  A241809 A241810 A241811 * A241813 A241814 A241815 KEYWORD nonn,base,easy AUTHOR Colin Barker, Apr 29 2014 STATUS approved

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Last modified September 28 10:51 EDT 2020. Contains 337393 sequences. (Running on oeis4.)