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#73 by Michael De Vlieger at Thu Jan 05 18:29:34 EST 2023
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#72 by Michel Marcus at Thu Jan 05 13:08:27 EST 2023
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#71 by Stefano Spezia at Thu Jan 05 03:21:56 EST 2023
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#70 by Stefano Spezia at Thu Jan 05 03:16:05 EST 2023
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| LINKS
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<a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (2,-3,4,-3,2,-1).
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| CROSSREFS
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Cf. A298805.
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#69 by Stefano Spezia at Thu Jan 05 03:13:31 EST 2023
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| FORMULA
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E.g.f.: (9*x*cosh(x) - 4*(2*cos(x) + x^2 - 3) + 9*x*sinh(x) - (x - 3)*sin(x))/4. - Stefano Spezia, Jan 05 2023
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| KEYWORD
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nonn,easy
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| STATUS
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approved
editing
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#68 by Joerg Arndt at Tue Sep 14 05:44:31 EDT 2021
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#67 by Michel Marcus at Tue Sep 14 05:36:51 EDT 2021
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#66 by Andrey Zabolotskiy at Tue Sep 14 05:33:15 EDT 2021
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#65 by Andrey Zabolotskiy at Tue Sep 14 05:28:43 EDT 2021
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| LINKS
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Chaim Goodman-Strauss and N. J. A. Sloane, <a href="https://doi.org/10.1107/S2053273318014481">A Coloring Book Approach to Finding Coordination Sequences</a>, Acta Cryst. A75 (2019), 121-134, also <a href="http://NeilSloane.com/doc/Cairo_final.pdf">on NJAS's home page</a>. Also <a href="http://arxiv.org/abs/1803.08530">on arXiv</a>, arXiv:1803.08530 [math.CO], 2018-2019. See section 10 The 3.12^2 tiling.
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| FORMULA
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All the above conjectures are true. Details will be added soon. - N. J. A. Sloane, Dec 31 2015
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| STATUS
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approved
editing
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#64 by Andrew Howroyd at Tue Dec 29 13:13:34 EST 2020
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