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Search: id:A116130
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| A116130 |
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Numbers n such that n concatenated with n-4 gives the product of two numbers which differ by 5. |
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+0
10
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| 8, 98, 590, 738, 830, 998, 1080, 4508, 9998, 20660, 29754, 99998, 980300, 999998, 6694218, 9999998, 49826988, 99999998, 117738578, 131505858, 132231404, 176445054, 177285320, 247979808, 252028388, 335180054, 336337790
(list; graph; listen)
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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 itself gives the product of two numbers which differ by 3.
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EXAMPLE
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7531357568//7531357564 = 8678339452 * 8678339457, where // denotes concatenation.
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CROSSREFS
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Cf. A116124, A116129, A116131, A116099, A116261.
Cf. A116163, A116136, A116125, A116099, A116287.
Sequence in context: A002506 A083182 A116267 this_sequence A116287 A099150 A116229
Adjacent sequences: A116127 A116128 A116129 this_sequence A116131 A116132 A116133
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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, Apr 13 2007
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