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A053913
Squares composed of digits {1,7,8}.
2
1, 81, 11881, 78881777881, 11187111187877881, 77878887787187881
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..6.
P. De Geest,
Squares containing at most three distinct digits, Index entries for related sequences
CROSSREFS
Cf.
A053912
.
Sequence in context:
A237027
A185847
A058422
*
A053895
A053905
A184690
Adjacent sequences:
A053910
A053911
A053912
*
A053914
A053915
A053916
KEYWORD
nonn
,
base
,
more
AUTHOR
Patrick De Geest
, Mar 15 2000
STATUS
approved
