A053896 - OEIS

A053896

Numbers k such that k^2 contains only digits {1,4,5}.

1, 2, 12, 21, 38, 10729, 39388, 664388, 10743112, 6415259271, 10701193462, 2261662119229, 73560479506012

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OFFSET

1,2

LINKS

Author?, Source(txt) [Broken link]

MATHEMATICA

Select[Range[1, 100000], ContainsOnly[IntegerDigits[#^2], {1, 4, 5}] &] (* Julien Kluge, Jul 08 2016 *)

CROSSREFS

KEYWORD

nonn,base,more

AUTHOR

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 04 2005

Two more terms from Jon E. Schoenfield, Sep 03 2006

STATUS

approved