%I #9 Jul 13 2021 01:20:32

%S 2,3,8,11,24,35,36,77,363,816,1095,1122,2571,7788,25704,114920,

%T 11281016,35599539,355057836,11489128191,258315170402,852060600000,

%U 1151781516003,3559869761679,25703436746877,25704497685660

%N Numbers k such that the k-th triangular number contains only digits {0,3,6}.

%H G. Resta, <a href="http://www.numbersaplenty.com/tr/tr036.html">Tridigital Triangular Numbers</a>

%Y Cf. A000217, A119063. See A119034 for a table of cross-references.

%K nonn,base

%O 1,1

%A _Giovanni Resta_, May 10 2006