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A114258 Numbers n such that the square of n contains exactly 2 copies of each digit of n. 14
72576, 406512, 415278, 494462, 603297, 725760, 3279015, 4065120, 4152780, 4651328, 4915278, 4927203, 4944620, 4972826, 4974032, 4985523, 4989323, 5002245, 5016125, 6032970, 6214358, 6415002, 6524235, 7257600, 9883667 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..25.

EXAMPLE

72576 is in the sequence since its square 5267275776 contains four 7, two 2, two 5 and two 6.

CROSSREFS

Cf. A114259, A114260, A114261.

Cf. A061656, A061657, A061658, A061659, A061660, A061661, A061662, A061663, A061664.

Sequence in context: A251340 A183788 A093212 * A238151 A234243 A260053

Adjacent sequences:  A114255 A114256 A114257 * A114259 A114260 A114261

KEYWORD

base,nonn

AUTHOR

Giovanni Resta, Nov 18 2005

STATUS

approved

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Last modified November 18 09:46 EST 2019. Contains 329261 sequences. (Running on oeis4.)