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A119161
Numbers k such that the k-th triangular number contains only digits {2,4,6}.
2
3, 11, 36, 923, 23076, 211963, 9656548, 35906663076, 9635790203866668, 35401826004387588
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OFFSET
1,1
COMMENTS
Next term exceeds 3.1*10^18.
LINKS
Table of n, a(n) for n=1..10.
G. Resta,
Tridigital Triangular Numbers
CROSSREFS
Cf.
A000217
,
A119160
. See
A119034
for a table of cross-references.
Sequence in context:
A119054
A119090
A048361
*
A119211
A119235
A119233
Adjacent sequences:
A119158
A119159
A119160
*
A119162
A119163
A119164
KEYWORD
nonn
,
base
,
more
AUTHOR
Giovanni Resta
, May 10 2006
EXTENSIONS
a(10) from
Max Alekseyev
, Jun 16 2011
STATUS
approved
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Last modified April 24 19:36 EDT 2024. Contains 371962 sequences. (Running on oeis4.)