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A116104 Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 4. 6
65, 6653, 9605, 218413, 283720, 996005, 58446925, 99960005, 6086712229, 7385370133, 8478948853, 9999600005, 120178240093, 161171620229, 358247912200, 426843573160, 893417179213, 999996000005, 23376713203604 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Duplicate of A115432. See proof at A115432. - Robert Israel, Sep 13 2023
LINKS
EXAMPLE
9999600005//9999599997 = 9999799999 * 9999800003, where // denotes concatenation.
CROSSREFS
Sequence in context: A202386 A294955 A115432 * A116121 A118707 A282839
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved

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Last modified June 11 19:50 EDT 2024. Contains 373317 sequences. (Running on oeis4.)