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A119193
Numbers k such that the k-th triangular number contains only digits {3,5,9}.
2
2, 10, 34, 109, 8189, 108989, 4470645, 32727845, 1095073836189, 1091781620649419010
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..10.
G. Resta,
Tridigital Triangular Numbers
CROSSREFS
Cf.
A000217
,
A119192
. See
A119034
for a table of cross-references.
Sequence in context:
A196969
A351551
A351550
*
A124634
A306099
A192378
Adjacent sequences:
A119190
A119191
A119192
*
A119194
A119195
A119196
KEYWORD
nonn
,
base
,
more
AUTHOR
Giovanni Resta
, May 10 2006
EXTENSIONS
a(10) from
Max Alekseyev
, May 21 2011
STATUS
approved
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Last modified May 5 17:32 EDT 2024. Contains 372277 sequences. (Running on oeis4.)