The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A006636 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A006636

From generalized Catalan numbers.
(history; published version)

#28 by Peter Luschny at Tue Mar 21 17:39:17 EDT 2023

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editing

approved

#27 by Peter Luschny at Tue Mar 21 17:30:16 EDT 2023

LINKS

A. G. Shannon, <a href="https://nntdm.net/volume-22-2016/number-2/10-16/">Catalan triangles and Finucan's hidden folders</a>. Notes on Number Theory and Discrete Mathematics, 22(2), 10-16, (2016).

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approved

editing

#26 by Joerg Arndt at Sat Oct 15 03:29:33 EDT 2022

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reviewed

approved

#25 by Michel Marcus at Sat Oct 15 02:56:58 EDT 2022

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proposed

reviewed

#24 by Stefano Spezia at Sat Oct 15 02:48:10 EDT 2022

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editing

proposed

#23 by Stefano Spezia at Sat Oct 15 02:47:21 EDT 2022

FORMULA

From Sean A. Irvine, May 30 2017: (Start)

a(n) = (n + 1) * (n + 2) * (n + 4) * (n + 8) * (n + 15) / 120. - _Sean A. Irvine_, May 30 2017

G.f: (2 - x)^3 / (x - 1)^6. - _Sean A. Irvine_, May 30 2017(End)

E.g.f.: exp(x)*(960 + 3360*x + 2280*x^2 + 500*x^3 + 40*x^4 + x^5)/120. - Stefano Spezia, Oct 15 2022

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approved

editing

#22 by Alois P. Heinz at Sun Apr 29 19:04:03 EDT 2018

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proposed

approved

#21 by Michel Marcus at Sun Apr 29 13:37:14 EDT 2018

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editing

proposed

#20 by Michel Marcus at Sun Apr 29 13:36:38 EDT 2018

LINKS

<a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (6,-15,20,-15,6,-1).

FORMULA

<a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (6,-15,20,-15,6,-1).

STATUS

approved

editing

Discussion

Sun Apr 29

13:37

Michel Marcus: link entry was in formula section

#19 by R. J. Mathar at Sun Sep 24 14:24:58 EDT 2017

STATUS

editing

approved