A119207 - OEIS

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A119207

Numbers k such that the k-th triangular number contains only digits {4,5,8}.

2

9, 10, 9854, 411933209, 9443035090314, 29851116744790, 30195643554810, 3423114221246070

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OFFSET

1,1

COMMENTS

Next term exceeds 1.4*10^16.

LINKS

Table of n, a(n) for n=1..8.

G. Resta, Tridigital Triangular Numbers

CROSSREFS

Cf. A000217, A119206. See A119034 for a table of cross-references.

Sequence in context: A042729 A156292 A119205 * A165254 A058069 A266703

Adjacent sequences: A119204 A119205 A119206 * A119208 A119209 A119210

KEYWORD

nonn,base,more

AUTHOR

Giovanni Resta, May 10 2006

STATUS

approved