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Search: id:A039686
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| A039686 |
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Squares which are the concatenation of two nonzero squares. |
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+0
3
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| 49, 169, 361, 1225, 1444, 1681, 3249, 4225, 4900, 15625, 16900, 36100, 42025, 49729, 64009, 81225, 93025, 122500, 144400, 168100, 225625, 237169, 324900, 422500, 490000, 519841, 819025, 950625, 970225, 1024144, 1442401, 1562500
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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D. Wells, Curious and interesting numbers, Penguin Books, p. 152.
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EXAMPLE
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1225=35^2, 225=15^2, 1=1^2.
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CROSSREFS
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Cf. A048375.
Sequence in context: A009431 A074216 A016922 this_sequence A038628 A016982 A100453
Adjacent sequences: A039683 A039684 A039685 this_sequence A039687 A039688 A039689
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KEYWORD
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nonn,base
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AUTHOR
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Felice Russo (felice.russo(AT)katamail.com)
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EXTENSIONS
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More terms from Patrick De Geest (pdg(AT)worldofnumbers.com), 03/99.
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