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#23 by Joerg Arndt at Sun Jul 19 11:53:15 EDT 2020
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#22 by Michel Marcus at Sun Jul 19 11:10:46 EDT 2020
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#21 by Michel Marcus at Sun Jul 19 11:10:43 EDT 2020
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| MATHEMATICA
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(GAP) List([0..25], n->Sum([0..n], i->Binomial(2*i-1, i)*Binomial(2*i, n-i))); # Muniru A Asiru, Oct 11 2018
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| PROG
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(GAP) List([0..25], n->Sum([0..n], i->Binomial(2*i-1, i)*Binomial(2*i, n-i))); # Muniru A Asiru, Oct 11 2018
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| STATUS
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approved
editing
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#20 by Susanna Cuyler at Wed Feb 20 08:11:21 EST 2019
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#19 by Joerg Arndt at Wed Feb 20 07:23:19 EST 2019
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#18 by Seiichi Manyama at Wed Feb 20 06:42:42 EST 2019
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#17 by Seiichi Manyama at Wed Feb 20 06:36:03 EST 2019
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| NAME
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a(n) = Sum_{i=0..n} Cbinomial(2*i-1,i)*Cbinomial(2*i,n-i).
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#16 by Seiichi Manyama at Wed Feb 20 06:35:26 EST 2019
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| LINKS
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Seiichi Manyama, <a href="/A320326/b320326.txt">Table of n, a(n) for n = 0..1000</a>
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| STATUS
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approved
editing
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#15 by Peter Luschny at Sun Oct 14 11:57:21 EDT 2018
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#14 by Muniru A Asiru at Thu Oct 11 04:09:01 EDT 2018
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