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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..7.

P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences

H. Mishima, Sporadic tridigital solutions

CROSSREFS

Cf. A053947.

Sequence in context: A100308 A049040 A103649 * A211946 A027283 A009639

Adjacent sequences:  A053943 A053944 A053945 * A053947 A053948 A053949

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

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Last modified August 11 23:45 EDT 2020. Contains 336434 sequences. (Running on oeis4.)