A119060 Numbers k such that the k-th triangular number contains only digits {0,3,4}.

2, 24, 77, 82, 2624, 26242, 29442, 82877, 2840082, 82825117, 93091399, 774641122, 816508460, 9423378739, 81731319999, 246333119999, 2976590096077, 8164967169602

Offset: 1

Author

Giovanni Resta, May 10 2006

Keywords

• nonn
• base
• more

Comments

Next term exceeds 1.4*10^16.

Links

• G. Resta, Tridigital Triangular Numbers

Crossrefs

Cf. A000217, A119059. See A119034 for a table of cross-references.