A119153 Numbers k such that the k-th triangular number contains only digits {2,3,5}.

2, 10, 22, 25, 102, 714, 2114, 2170, 2550, 21097, 671302, 258973177, 1023088777, 22460425354, 211297574645, 668630474213122229

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Giovanni Resta, Tridigital Triangular Numbers.

Crossrefs

Cf. A000217, A119152. See A119034 for a table of cross-references.

Sequence in context: A303294 A302566 A333702 * A339486 A273993 A225290

Adjacent sequences: A119150 A119151 A119152 * A119154 A119155 A119156

Keyword

nonn,base,more

Author

Giovanni Resta, May 10 2006

Extensions

a(16) from Tyler Busby, Mar 31 2023

Status

approved