The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A106440 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A106440

a(n) = binomial(2n+4,n)*binomial(n+4,4).
(history; published version)

#20 by Peter Luschny at Thu Aug 19 01:02:12 EDT 2021

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proposed

approved

#19 by Michel Marcus at Wed Aug 18 23:44:13 EDT 2021

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editing

proposed

#18 by Michel Marcus at Wed Aug 18 23:44:10 EDT 2021

NAME

Binomiala(n) = binomial(2n+4,n)*binomial(n+4,4).

CROSSREFS

Cf. A002803, A020920.

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proposed

editing

#17 by Michael De Vlieger at Wed Aug 18 22:03:36 EDT 2021

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editing

proposed

#16 by Michael De Vlieger at Wed Aug 18 22:03:33 EDT 2021

LINKS

Michael De Vlieger, <a href="/A106440/b106440.txt">Table of n, a(n) for n = 0..1642</a>

Ömür Deveci and Anthony G. Shannon, <a href="https://doi.org/10.20948/mathmontis-2021-50-4">Some aspects of Neyman triangles and Delannoy arrays</a>, Mathematica Montisnigri (2021) Vol. L, 36-43.

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approved

editing

#15 by R. J. Mathar at Mon Feb 08 07:01:58 EST 2021

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editing

approved

#14 by R. J. Mathar at Mon Feb 08 07:01:55 EST 2021

FORMULA

D-finite with recurrence n^2*a(n) -2*(n+2)*(2*n+3)*a(n-1)=0. - R. J. Mathar, Feb 20 2015

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approved

editing

#13 by Harvey P. Dale at Fri May 03 09:57:03 EDT 2019

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editing

approved

#12 by Harvey P. Dale at Fri May 03 09:57:00 EDT 2019

MATHEMATICA

Table[Binomial[2n+4, n]Binomial[n+4, 4], {n, 0, 20}] (* Harvey P. Dale, May 03 2019 *)

STATUS

approved

editing

#11 by R. J. Mathar at Sun Aug 09 11:36:07 EDT 2015

STATUS

editing

approved