A119064 Numbers k such that the k-th triangular number contains only digits {0,3,6}.

2, 3, 8, 11, 24, 35, 36, 77, 363, 816, 1095, 1122, 2571, 7788, 25704, 114920, 11281016, 35599539, 355057836, 11489128191, 258315170402, 852060600000, 1151781516003, 3559869761679, 25703436746877, 25704497685660, 269566329724616, 1122524503102983, 2695563144502575

Offset

1,1

Links

Table of n, a(n) for n=1..29.

Giovanni Resta, Tridigital Triangular Numbers

Crossrefs

Cf. A000217, A119063. See A119034 for a table of cross-references.

Sequence in context: A280323 A153439 A289752 * A285113 A335632 A048788

Adjacent sequences: A119061 A119062 A119063 * A119065 A119066 A119067

Keyword

nonn,base

Author

Giovanni Resta, May 10 2006

Extensions

a(27)-a(29) from Resta link added by Pontus von Brömssen, Sep 12 2025

Status

approved