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A116353 Numbers n such that n times n+7 gives the concatenation of two numbers m and m+9. 4
27, 67, 3416102887775247376839416334668636, 3756559953325598880263233435801765, 4313503800489302411917772257282209 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

67 * 74 = 49//58, where // denotes concatenation.

CROSSREFS

Cf. A116169, A116346, A116352, A116354.

Sequence in context: A099865 A065008 A250134 * A224525 A219130 A116302

Adjacent sequences:  A116350 A116351 A116352 * A116354 A116355 A116356

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified December 5 13:26 EST 2019. Contains 329751 sequences. (Running on oeis4.)