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A053956 Numbers n such that n^2 contains only digits {4,6,7}. 1
2, 8, 26, 88, 2108238, 8165033238, 876154475408, 2538991467974, 2728823494615908, 253863101778786762, 815277035409723028858892 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

LINKS

Author?, Source(txt)

H. Mishima Squares consisted of 3 different digits [From Max Alekseyev (maxale(AT)gmail.com), May 07 2009]

CROSSREFS

Cf. A053957.

Sequence in context: A002930 A060410 A128634 * A052543 A026638 A067855

Adjacent sequences:  A053953 A053954 A053955 * A053957 A053958 A053959

KEYWORD

nonn,base,more

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.

EXTENSIONS

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

One more term from Jon E. Schoenfield (jonscho(AT)hiwaay.net), Sep 04 2006

Three more terms from Mishima's website. Max Alekseyev (maxale(AT)gmail.com), May 07 2009

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Last modified February 15 19:15 EST 2012. Contains 205852 sequences.