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A058415 Numbers k such that k^2 contains only digits {0,1,5}, not ending with zero. 1

%I #6 Oct 18 2019 22:22:40

%S 1,74499,124499,10747139619499,23560879769251,23452400954944999

%N Numbers k such that k^2 contains only digits {0,1,5}, not ending with zero.

%H P. De Geest, <a href="http://www.worldofnumbers.com/threedigits.htm">Index to related sequences</a>

%H Hisanori Mishima, <a href="http://www.asahi-net.or.jp/~KC2H-MSM/mathland/math02/math0210.htm">Sporadic tridigital solutions</a>

%Y Cf. A058416.

%K nonn,base,more

%O 1,2

%A _Patrick De Geest_, Nov 15 2000

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Last modified June 23 20:00 EDT 2024. Contains 373653 sequences. (Running on oeis4.)