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A116312 n times n+8 gives the concatenation of two numbers m and m+3. 5
72, 3255, 6738, 9752, 80647887029795095027968358511096470120, 85938613861405938604061385940594061403, 88568679109003015820047566431888549328 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

9752 * 9760 = 9517//9520, where // denotes concatenation.

CROSSREFS

Cf. A116181, A116305, A116311, A116313, A116320.

Sequence in context: A004366 A004389 A111598 * A111782 A060507 A238772

Adjacent sequences:  A116309 A116310 A116311 * A116313 A116314 A116315

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified August 4 21:03 EDT 2021. Contains 346455 sequences. (Running on oeis4.)