A119191 Numbers k such that the k-th triangular number contains only digits {3,5,8}.

2, 10, 129, 841229, 26014826114, 3417172921745, 10520014765729

Offset

1,1

Comments

Next term exceeds 1.4*10^16.

Links

Table of n, a(n) for n=1..7.

G. Resta, Tridigital Triangular Numbers

Crossrefs

Cf. A000217, A119190. See A119034 for a table of cross-references.

Sequence in context: A202950 A144835 A305028 * A125993 A185952 A258971

Adjacent sequences: A119188 A119189 A119190 * A119192 A119193 A119194

Keyword

nonn,base,more

Author

Giovanni Resta, May 10 2006

Status

approved