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A115443
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Numbers n such that the square of n is the concatenation of two numbers k and k-4.
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11
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81, 8157, 9801, 467347, 532654, 998001, 76450589, 99980001, 7801738415, 8593817623, 9208120793, 9999800001, 346667333467, 401461854015, 598538145986, 653332666534, 945207479453, 999998000001, 48349470735060
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| 9605_9601 = 9801^2.
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CROSSREFS
| Cf. A030467, A106497, A115432, A115427, A115438, A115439, A115440, A115441, A115442, A115444, A115445, A115446, A115447.
Sequence in context: A206504 A046172 A123847 * A186527 A178511 A184337
Adjacent sequences: A115440 A115441 A115442 * A115444 A115445 A115446
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KEYWORD
| base,nonn
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AUTHOR
| Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 25 2006
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