A053946 - OEIS

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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

Sequence in context: A352694 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