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Search: id:A115559
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| A115559 |
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a(n) is here if it is not a prime number and it is an integer square root of an entry taken from A115557. |
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+0
3
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| 1, 316, 333, 549, 844, 963, 981, 1052, 1233, 1251, 1304, 1341, 1359, 1474, 1629, 1688, 1737, 1738, 1996, 2061, 2144, 2216, 2421, 2528, 2547, 2763, 2979, 3033, 3082, 3123, 3141, 3148, 3231, 3244, 3283, 3303, 3411, 3573, 3634, 3871, 3879, 3897, 3988, 4113
(list; graph; listen)
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OFFSET
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1,2
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FORMULA
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The commutator[sigma, tau] is zero and a(n) is the square root of solutions. Moreover this square root is a nonprime number.
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CROSSREFS
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Cf. A000005, A000203, A076360, A076361, A062068, A062069, A115557, A115559, A115560.
Sequence in context: A087415 A088010 A048905 this_sequence A033861 A101112 A142003
Adjacent sequences: A115556 A115557 A115558 this_sequence A115560 A115561 A115562
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana1.sote.hu), Jan 25 2006
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