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A116190 Numbers k such that k concatenated with k+4 gives the product of two numbers which differ by 9. 4
16, 36, 12366, 42036, 64996, 1589736168, 1921234732, 3154856388, 3615437032, 5939192968, 6565302732, 1888656611704713276, 2251541774559900786, 2761459004510103616, 3196921199936328628, 63080834574071218603723158 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
CROSSREFS
Sequence in context: A300535 A053893 A068833 * A070587 A350288 A354473
KEYWORD
nonn,base
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved

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Last modified February 22 22:43 EST 2024. Contains 370265 sequences. (Running on oeis4.)