A119062 Numbers k such that the k-th triangular number contains only digits {0,3,5}.

2, 10, 24, 77, 100, 1000, 10000, 100000, 257100, 1000000, 2647829, 10000000, 10349399, 26657100, 100000000, 316340024, 775313489, 1000000000, 10000000000, 100000000000, 1000000000000, 1003347948924, 8403017712114

Offset: 1

Author

Giovanni Resta, May 10 2006

Keywords

• nonn
• base

Links

• G. Resta, Tridigital Triangular Numbers

Crossrefs

Cf. A000217, A119061. See A119034 for a table of cross-references.