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A053948 Numbers n such that n^2 contains only digits {3,6,9}. 1
3, 6, 63, 264, 306, 1914, 3114, 31086, 81813, 190614, 251787, 310956, 184372811544, 631933060806, 3152295978114, 629836198308687, 2576231033241456, 18430047920827535573187 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..18.

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

Author?, Source, (txt)

H. Mishima, Sporadic tridigital solutions

CROSSREFS

Cf. A053949.

Sequence in context: A137138 A215492 A125817 * A270745 A137091 A137135

Adjacent sequences:  A053945 A053946 A053947 * A053949 A053950 A053951

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest, Mar 15 2000.

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 14 2005

One more term from Jon E. Schoenfield, Sep 04 2006

Three more terms from Mishima's webpage added by Max Alekseyev, Jun 17 2011

STATUS

approved

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Last modified August 21 13:36 EDT 2017. Contains 290890 sequences.