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A053912
Numbers k such that k^2 contains only digits {1,7,8}.
1
1, 9, 109, 280859, 105769141, 279067891
(list; graph; refs; listen; history; text; internal format)
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. A053913.
Sequence in context: A261502 A359731 A105974 * A053894 A053904 A058607
Adjacent sequences: A053909 A053910 A053911 * A053913 A053914 A053915
KEYWORD
nonn,base,more
AUTHOR
Patrick De Geest, Mar 15 2000
STATUS
approved

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Last modified November 15 04:11 EST 2024. Contains 377736 sequences.
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