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Search: id:A052069
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| A052069 |
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a(n)^2 is the smallest square whose digits occur with the same frequency n. |
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+0
7
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| 0, 88, 10011, 31646191, 16431563, 667567716, 10715008859, 652246443112, 15647628653832
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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P. De Geest, Numbers whose digits occur with same frequency
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EXAMPLE
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E.g. 31646191^2 = 1001481404808481 and its digits 0, 1, 4 and 8 each occur four times.
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CROSSREFS
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Cf. A052070, A045540, A052046, A052049, A052050, A052071.
Sequence in context: A017751 A137057 A004391 this_sequence A048919 A159718 A157460
Adjacent sequences: A052066 A052067 A052068 this_sequence A052070 A052071 A052072
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KEYWORD
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nonn,base,more,nice
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AUTHOR
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Patrick De Geest (pdg(AT)worldofnumbers.com), Jan 15 2000.
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EXTENSIONS
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2 more terms from Jon E. Schoenfield (jonscho(AT)hiwaay.net), Aug 18 2007
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