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Search: id:A115442
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| A115442 |
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Numbers n such that the square of n is the concatenation of two numbers k and k-2. |
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+0
12
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| 8, 7312, 8991, 32524, 67477, 76568, 4891730, 5108271, 8528094, 71588336, 98999901, 399659933007, 600340066994, 723627738227, 877712329768, 998999999001, 3485626998114, 3787100274614, 6212899725387, 6514373001887
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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8083_8081 = 8991^2.
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CROSSREFS
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Cf. A030467, A106497, A115431, A115427, A115438, A115439, A115440, A115441, A115443, A115444, A115445, A115446, A115447.
Sequence in context: A052497 A079189 A114133 this_sequence A090494 A079656 A114773
Adjacent sequences: A115439 A115440 A115441 this_sequence A115443 A115444 A115445
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KEYWORD
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base,nonn
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AUTHOR
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Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 24 2006
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