A119080 Numbers k such that the k-th triangular number contains only digits {0,5,6}.

3, 10, 11, 36, 100, 105, 114, 363, 1000, 1095, 1100, 3363, 10000, 11000, 100000, 110000, 1000000, 1100000, 10000000, 11000000, 11541720, 33166430, 33336636, 100000000, 110000000, 1000000000, 1100000000, 3363197899, 3464103363

Offset: 1

Author

Giovanni Resta, May 10 2006

Keywords

• nonn
• base

Links

• G. Resta, Tridigital Triangular Numbers

Crossrefs

Cf. A000217, A119079. See A119034 for a table of cross-references.