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Search: id:A114735
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| A114735 |
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Least odd number k such that Phi(k,x) is a flat cyclotomic polynomial of order n. |
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+0
1
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OFFSET
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1,1
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COMMENT
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A flat polynomial is defined to be a polynomial whose coefficients are -1, 0, or 1. Order n means that k is the product of n distinct odd primes. Although the first four numbers are triangular (A000217), this appears to be a coincidence. Are there flat cyclotomic polynomials of all orders?
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CROSSREFS
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Cf. A117223 (third-order flat cyclotomic polynomials), A117318 (fourth-order flat cyclotomic polynomials).
Sequence in context: A007081 A126455 A136466 this_sequence A139289 A116518 A050474
Adjacent sequences: A114732 A114733 A114734 this_sequence A114736 A114737 A114738
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KEYWORD
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nonn
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AUTHOR
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T. D. Noe (noe(AT)sspectra.com), Mar 14 2006
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