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A053888
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Numbers n such that n^2 contains only digits {1,2,9}.
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1
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1, 3, 11, 173, 3161, 34827, 43923, 44623, 54123, 1108661, 9603239, 14832161, 9960980373, 1513668461761, 99961098929489127, 459556524411439511
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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LINKS
| Author?, Source(txt)
P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences
H. Mishima, Squares consisting of 3 different digits
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CROSSREFS
| Cf. A053889.
Sequence in context: A140538 A006485 A003115 * A118479 A103836 A081484
Adjacent sequences: A053885 A053886 A053887 * A053889 A053890 A053891
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KEYWORD
| nonn,base,more
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com), Mar 15 2000.
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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 03 2006
Two more terms from Mishima's webpage added by Max Alekseyev (maxale(AT)gmail.com), Jun 17 2011
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