A119090 Numbers k such that the k-th triangular number contains only digits {0,6,8}.

3, 11, 36, 363, 1095, 1271283, 3687839, 34642771, 3705851211, 133181080239, 365754039996, 127034546483126864, 1333271810847736239, 4001669872957554920

Offset: 1

Author

Giovanni Resta, May 10 2006

Keywords

• nonn
• base
• more

Links

• Giovanni Resta, Tridigital Triangular Numbers

Crossrefs

Cf. A000217, A119089. See A119034 for a table of cross-references.

Extensions

a(12)-a(14) from Tyler Busby, Mar 30 2023