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Search: id:A116147
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| A116147 |
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Numbers n such that n concatenated with n-2 gives the product of two numbers which differ by 9. |
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+0
10
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OFFSET
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1,1
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COMMENT
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Also, numbers n such that n concatenated with n+6 gives the product of two numbers which differ by 7.
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EXAMPLE
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4962//4960 = 7040 * 7049, where // denotes concatenation.
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CROSSREFS
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Cf. A116140, A116146, A116153, A116278.
Cf. A116195, A116200, A116202, A116209, A116332.
Adjacent sequences: A116144 A116145 A116146 this_sequence A116148 A116149 A116150
Sequence in context: A091878 A015357 A037044 this_sequence A108837 A070001 A031840
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KEYWORD
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nonn,base
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AUTHOR
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Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006
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EXTENSIONS
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Edited by njas at the suggestion of Eric Desbiaux, Mar 23 2008
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