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A116289 Numbers k such that k*(k+5) gives the concatenation of a number m with itself. 5
6, 96, 385, 429, 567, 611, 814, 996, 4521, 5475, 9996, 90910, 99996, 316832, 683164, 999996, 3636364, 6363632, 9999996, 82352942, 99999996, 331668332, 368421053, 395604391, 442767754, 461538462, 488721800, 511278196 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..28.

CROSSREFS

Cf. A028557, A020338.

Cf. A116158, A116281, A116288, A116290, A116303.

Sequence in context: A336825 A116158 A275561 * A116256 A275086 A222971

Adjacent sequences:  A116286 A116287 A116288 * A116290 A116291 A116292

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified May 22 10:52 EDT 2022. Contains 353949 sequences. (Running on oeis4.)