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#23 by Michael De Vlieger at Wed Jun 07 08:31:23 EDT 2023
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#22 by Michel Marcus at Wed Jun 07 01:37:04 EDT 2023
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#21 by Stefano Spezia at Tue Jun 06 16:10:35 EDT 2023
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#20 by Stefano Spezia at Tue Jun 06 16:01:51 EDT 2023
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| FORMULA
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G.f.: 4*x^2/(/((1 - 2*x)*(1 - 2*x^2 + 4*x^3).)).
E.g.f.: 2*(cosh(2*x) - cosh(sqrt(2)*x) + sinh(2*x) - sqrt(2)*sinh(sqrt(2)*x)). - Stefano Spezia, Jun 06 2023
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| STATUS
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approved
editing
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#19 by N. J. A. Sloane at Mon Jul 09 23:21:08 EDT 2018
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#18 by Joerg Arndt at Sat Jul 07 04:01:51 EDT 2018
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#17 by Michel Marcus at Sat Jul 07 04:00:31 EDT 2018
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#16 by Michel Marcus at Sat Jul 07 04:00:27 EDT 2018
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| REFERENCES
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A. Gabhe, Problems and Solutions: 11623, The Amer. Math. Monthly 119 (2012), no. 2, 161.
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| LINKS
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Aruna Gabhe, <a href="https://www.jstor.org/stable/10.4169/amer.math.monthly.119.02.161">Problem 11623</a>, Am. Math. Monthly 119 (2012) 161.
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#15 by Michel Marcus at Sat Jul 07 04:00:10 EDT 2018
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| LINKS
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<a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (2,2,-4).
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| CROSSREFS
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Cf. A056453, A208900-, A208902, A208903.
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| STATUS
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approved
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#14 by Charles R Greathouse IV at Sat Jun 13 00:54:11 EDT 2015
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| LINKS
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<a href="/index/Rec">Index to sequencesentries withfor linear recurrences with constant coefficients</a>, signature (2,2,-4).
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Discussion
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| Sat Jun 13
| 00:54
| OEIS Server: https://oeis.org/edit/global/2439
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