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A053946
Numbers k such that k^2 contains only digits {3,6,7}.
1
6, 26, 194, 876, 18376, 25226323103806424, 1932967502917049474
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..7.
P. De Geest,
Squares containing at most three distinct digits, Index entries for related sequences
H. Mishima,
Sporadic tridigital solutions
CROSSREFS
Cf.
A053947
.
Sequence in context:
A352694
A049040
A103649
*
A211946
A027283
A009639
Adjacent sequences:
A053943
A053944
A053945
*
A053947
A053948
A053949
KEYWORD
nonn
,
base
,
more
AUTHOR
Patrick De Geest
, Mar 15 2000
EXTENSIONS
Two more terms from Mishima's webpage added by
Max Alekseyev
, Jan 28 2012
STATUS
approved
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Last modified April 19 16:38 EDT 2024. Contains 371794 sequences. (Running on oeis4.)