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A116317 Numbers n such that n times n+4 gives the concatenation of two numbers m and m+4. 5
7745, 8019, 33294316, 66705681, 98000199, 340465755423, 476452552743, 523547447254, 659534244574, 866013200679, 998000001999, 3695104677080132, 3755782995538766, 4198081170077529, 4803478892324964, 5196521107675033 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..16.

EXAMPLE

98000199 * 98000203 = 96040393//96040397, where // denotes concatenation.

CROSSREFS

Cf. A115429, A116297, A116316, A116318, A116323.

Sequence in context: A052070 A052099 A079035 * A031586 A116335 A115440

Adjacent sequences:  A116314 A116315 A116316 * A116318 A116319 A116320

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified August 7 17:02 EDT 2020. Contains 336277 sequences. (Running on oeis4.)