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Search: id:A083406
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| A083406 |
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Even square numbers which can be expressed as the product of two reversible numbers in two different ways. |
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+0
2
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| 63504, 7683984, 420332004, 558471424, 726949444, 782432784, 78384320784, 4020033020004, 4520777468944, 4911196718884, 5059899334084, 5510436994624, 5901216694564
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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S. S. Gupta, EPRNs, Science Today, Feb. 1987, India.
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LINKS
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Shyam Sunder Gupta, EPRN Numbers.
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EXAMPLE
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63504 = 252 * 252 = 144 * 441, 7683984 = 2772 * 2772 = 1584 * 4851,etc.
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CROSSREFS
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Cf. A066531.
Sequence in context: A117282 A076750 A083408 this_sequence A072693 A119276 A054738
Adjacent sequences: A083403 A083404 A083405 this_sequence A083407 A083408 A083409
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KEYWORD
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nonn,base
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AUTHOR
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Shyam Sunder Gupta (guptass(AT)rediffmail.com), Jun 07 2003
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