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A116095
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Numbers n such that n concatenated with n-9 gives the product of two numbers which differ by 2.
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4
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2137, 2892, 6369, 12217, 21964, 28233, 42312, 4978977, 9571608, 18642249, 32288908, 96039609, 200037461217, 305526508312, 570666416233, 638912248204, 996003996009, 1846991026584, 3251664327537, 4859838227992
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| If n-9 and n-8 have the same number of decimal digits, and the n is in A115435, it also is in this sequence (and vice versa). [From R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 09 2010]
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EXAMPLE
| 96039609//96039600 = 97999800 * 97999802, where // denotes
concatenation.
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CROSSREFS
| Cf. A116094, A116096, A116102, A116226.
Sequence in context: A206007 A020398 A115435 * A199745 A200145 A179271
Adjacent sequences: A116092 A116093 A116094 * A116096 A116097 A116098
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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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