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A053914
Numbers k such that k^2 contains only digits {1,8,9}.
1
1, 3, 9, 109, 141, 10583, 34641, 44510583, 105741141, 942926927083, 4346471925583, 2969848344609859
OFFSET
1,2
CROSSREFS
Cf. A053915.
Sequence in context: A340483 A018746 A289070 * A018757 A281070 A261245
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
One more term from Jon E. Schoenfield, Sep 03 2006
One more term from Mishima's webpage added by Max Alekseyev, Jan 28 2012
STATUS
approved