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Search: id:A115436
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| A115436 |
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Numbers n such that the concatenation of n with n-9 gives a square. |
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12
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| 50, 5234, 9410, 638370, 994010, 12477933, 41829698, 99940010, 1087279650, 4492494893, 6226356365, 7765453730, 9999400010, 806057802450, 842377434050, 960398039610, 999994000010, 21338126513658, 24752544267698
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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638370_638361 = 798981^2.
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CROSSREFS
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Cf. A030465, A102567, A115426, A115437, A115428, A115429, A115430, A115431, A115432, A115433, A115434, A115435, A115447.
Sequence in context: A097838 A047683 A010564 this_sequence A152258 A028465 A034205
Adjacent sequences: A115433 A115434 A115435 this_sequence A115437 A115438 A115439
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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 25 2006
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