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A119163
Numbers k such that the k-th triangular number contains only digits {2,4,8}.
2
7, 312, 1287, 1297912, 7054712, 7521287, 2384302087
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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
,
A119162
. See
A119034
for a table of cross-references.
Sequence in context:
A300870
A239163
A086215
*
A364479
A171148
A219267
Adjacent sequences:
A119160
A119161
A119162
*
A119164
A119165
A119166
KEYWORD
nonn
,
base
,
more
AUTHOR
Giovanni Resta
, May 10 2006
STATUS
approved
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Last modified April 24 03:08 EDT 2024. Contains 371918 sequences. (Running on oeis4.)