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A116274 Numbers k such that k*(k+3) gives the concatenation of two numbers m and m-2. 5
9, 99, 362, 636, 713, 922, 999, 8904, 9999, 81817, 99999, 336632, 663366, 999999, 7272726, 9999999, 76470588, 99999999, 333666332, 405436667, 428571428, 447710184, 454545453, 473684210, 526315788, 545454545, 552289814 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..27.

CROSSREFS

Cf. A116143, A116259, A116273, A116275, A116280.

Sequence in context: A266022 A284691 A147829 * A116286 A306449 A160946

Adjacent sequences:  A116271 A116272 A116273 * A116275 A116276 A116277

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Feb 06 2006

STATUS

approved

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Last modified August 9 21:08 EDT 2022. Contains 356026 sequences. (Running on oeis4.)