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A116242 Numbers n such that n times n+6 gives the concatenation of two numbers m and m-7. 5
8871, 9008, 83352839, 99000098, 329767122285, 670232877710, 738226276370, 933006600338, 999000000998, 3779410975143112, 3872816717528064, 4250291784692547, 4278630943941864, 4372036686326816, 4749511753491299 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

99000098 * 99000104 = 98010199//98010192, where // denotes concatenation.

CROSSREFS

Cf. A115426, A116237, A116241, A116243, A116256.

Sequence in context: A071564 A031625 A046506 * A116275 A116295 A115427

Adjacent sequences:  A116239 A116240 A116241 * A116243 A116244 A116245

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified June 16 13:13 EDT 2019. Contains 324152 sequences. (Running on oeis4.)