A119185 Numbers k such that the k-th triangular number contains only digits {3,4,6}.

2, 3, 8, 11, 36, 816, 85611, 364243, 81775868, 817858956, 832639591, 85374871556, 94304439591, 1152678139331, 29551086049868, 112573208752763, 855959656346411, 966058450039783, 1151819988918983

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, A119184. See A119034 for a table of cross-references.