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A116107
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Numbers n such that n concatenated with n-8 gives the product of two numbers which differ by 7.
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8
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52, 63716866, 48793687600063875363014809897052, 60020753655608135708762056127156, 60446518621981165303188950156776, 71135436903815748345367595855336, 72876856643103028189103298533248
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Also numbers n such that n concatenated with n-2 gives the product of two numbers which differ by 5.
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EXAMPLE
| 63716866//63716864 = 79822843 * 79822848, where // denotes concatenation.
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CROSSREFS
| Cf. A116099, A116106, A115429, A116112, A116238, A115426, A116146, A116276.
Sequence in context: A198721 A198912 A038778 * A114787 A198776 A051320
Adjacent sequences: A116104 A116105 A116106 * A116108 A116109 A116110
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KEYWORD
| nonn,base
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AUTHOR
| Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 06 2006
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EXTENSIONS
| Edited by N. J. A. Sloane (njas(AT)research.att.com), Apr 15 2007
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