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A053932
Numbers k such that k^2 contains only digits {2,7,9}.
1
3, 27, 173, 527, 5223, 85013527, 2824499473, 5271838173, 14907304327, 850281851974525726895170673
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OFFSET
1,1
LINKS
Table of n, a(n) for n=1..10.
Patrick De Geest,
Squares containing at most three distinct digits, Index entries for related sequences
Author?,
Source
, (
txt
)
CROSSREFS
Cf.
A053933
.
Sequence in context:
A056370
A056361
A141442
*
A027507
A297670
A220820
Adjacent sequences:
A053929
A053930
A053931
*
A053933
A053934
A053935
KEYWORD
nonn
,
base
,
more
AUTHOR
Patrick De Geest
, Mar 15 2000
EXTENSIONS
More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005
a(10) from
Zhao Hui Du
, Mar 06 2024
STATUS
approved
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Last modified March 29 03:51 EDT 2024. Contains 371264 sequences. (Running on oeis4.)