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#32 by Charles R Greathouse IV at Thu Sep 08 08:45:14 EDT 2022
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(MAGMAMagma) [1] cat &cat [[1, 0, 1, 2]^^30]; // Wesley Ivan Hurt, Jul 07 2016
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Discussion
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| Thu Sep 08
| 08:45
| OEIS Server: https://oeis.org/edit/global/2944
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#31 by Joerg Arndt at Fri Jul 08 03:23:37 EDT 2016
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#30 by Michel Marcus at Thu Jul 07 13:16:46 EDT 2016
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#29 by Ilya Gutkovskiy at Thu Jul 07 13:04:42 EDT 2016
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#28 by Ilya Gutkovskiy at Thu Jul 07 13:04:36 EDT 2016
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E.g.f.: exp(x) + cos(x) - 1. - Ilya Gutkovskiy, Jul 07 2016
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| STATUS
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proposed
editing
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#27 by Wesley Ivan Hurt at Thu Jul 07 12:56:15 EDT 2016
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#26 by Wesley Ivan Hurt at Thu Jul 07 12:55:59 EDT 2016
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Transform of A011782 under the Chebyshev mapping g(x)-> ((1-x^2)/(1+x^2)))) * g(x/(1+x^2)).
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G.f.: (1+x)(1-x+x^2)/((1-x)(1+x^2)).
a(n) = 1 + cos(piPi*n/2) - 0^n.
a(n) = a(n-1) - a(n-2) + a(n-3), ) for n>2.
a(n) = a(n-4) for n>4. - Wesley Ivan Hurt, Jul 07 2016
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| PROG
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(MAGMA) [1] cat &cat [[1, 0, 1, 2]^^30]; // Wesley Ivan Hurt, Jul 07 2016
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| CROSSREFS
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Cf. A007877, A098179.
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| STATUS
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approved
editing
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#25 by Joerg Arndt at Thu Sep 03 13:37:26 EDT 2015
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#24 by Joerg Arndt at Thu Sep 03 13:36:41 EDT 2015
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1, followed by period 4, repeat [1, 0, 1, 2, 1]. [Joerg Arndt, Jan 06 2014]
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#23 by Joerg Arndt at Thu Sep 03 13:36:15 EDT 2015
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1, followed by period 84, repeat [1, 0, 1, 2, 1, 0, 1, 2]. [Joerg Arndt, Jan 06 2014]
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approved
editing
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