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A115427 Numbers k such that k^2 is the concatenation of two numbers m and m+2. 11
8874, 9011, 83352842, 99000101, 329767122288, 670232877713, 738226276373, 933006600341, 999000001001, 3779410975143115, 3872816717528067, 4250291784692550, 4278630943941867, 4372036686326819, 4749511753491302 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

EXAMPLE

9011^2 = 8119_8121.

CROSSREFS

Cf. A030467, A106497, A115426, A115438, A115439, A115440, A115441, A115442, A115443, A115444, A115445, A115446, A115447.

Sequence in context: A116242 A116275 A116295 * A236614 A209712 A282059

Adjacent sequences:  A115424 A115425 A115426 * A115428 A115429 A115430

KEYWORD

base,nonn

AUTHOR

Giovanni Resta, Jan 24 2006

STATUS

approved

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Last modified July 29 17:41 EDT 2021. Contains 346346 sequences. (Running on oeis4.)