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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
OFFSET
1,1
CROSSREFS
Cf. A053947.
Sequence in context: A352694 A049040 A103649 * A211946 A027283 A009639
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