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A115441 Numbers whose square is the concatenation of two numbers k and k+9. 11
465, 536, 718, 822, 3428, 6573, 90907, 980202, 3636361, 6363640, 41176468, 58823533, 413533838, 426573430, 428571426, 432620009, 567379992, 571428575, 573426571, 586466163, 686261111, 725274729, 727272725, 731321308 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..24.

EXAMPLE

82640_82649 = 90907^2.

CROSSREFS

Cf. A030467, A106497, A115430, A115427, A115438, A115439, A115440, A115442, A115443, A115444, A115445, A115446, A115447.

Sequence in context: A247852 A233352 A233120 * A028383 A263971 A263962

Adjacent sequences:  A115438 A115439 A115440 * A115442 A115443 A115444

KEYWORD

base,nonn

AUTHOR

Giovanni Resta, Jan 24 2006

STATUS

approved

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Last modified August 4 09:55 EDT 2021. Contains 346446 sequences. (Running on oeis4.)