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A116241 n times n+3 gives the concatenation of two numbers m and m-7. 4
73, 7248, 7933, 86896, 95987, 7450774, 8912861, 3546363535354546353, 4635454646463635463, 5364545353536364535, 6453636464645453645, 31993591495513432827263, 39229430087220380122375 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

8912861 * 8912864 = 7943911//7943904, where // denotes

concatenation.

CROSSREFS

Cf. A116110, A116234, A116242, A116253.

Sequence in context: A292013 A192765 A177094 * A105322 A176987 A174747

Adjacent sequences:  A116238 A116239 A116240 * A116242 A116243 A116244

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified February 21 03:06 EST 2019. Contains 320364 sequences. (Running on oeis4.)