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%I #8 Jul 13 2021 07:23:24
%S 3,7,11,36,72,676,1287,2108,11512,21112,23927,35447,37112,41527,67323,
%T 35289847,41633847,11684368072,24026103588,364110500487,
%U 7566093164465563
%N Numbers k such that the k-th triangular number contains only digits {2,6,8}.
%C Next term exceeds 1.4*10^16.
%H G. Resta, <a href="http://www.numbersaplenty.com/tr/tr268.html">Tridigital Triangular Numbers</a>
%Y Cf. A000217, A119174. See A119034 for a table of cross-references.
%K nonn,base,more
%O 1,1
%A _Giovanni Resta_, May 10 2006
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