login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A178343 Triangle T(n,m)= binomial(n, m)/Beta(m + 1, n - m + 1) read by rows. 0

%I

%S 1,2,2,3,12,3,4,36,36,4,5,80,180,80,5,6,150,600,600,150,6,7,252,1575,

%T 2800,1575,252,7,8,392,3528,9800,9800,3528,392,8,9,576,7056,28224,

%U 44100,28224,7056,576,9,10,810,12960,70560,158760,158760,70560,12960,810,10

%N Triangle T(n,m)= binomial(n, m)/Beta(m + 1, n - m + 1) read by rows.

%C Beta(x,y) = Gamma(x)*Gamma(y)/Gamma(x+y) is the Beta-function.

%C Row sums are A037965(n+1). The second column is A011379.

%F T(n,m)=T(n,n-m) = (n+1)*( binomial(n,m))^2 = (n+1)*A008459(n).

%e 1;

%e 2, 2;

%e 3, 12, 3;

%e 4, 36, 36, 4;

%e 5, 80, 180, 80, 5;

%e 6, 150, 600, 600, 150, 6;

%e 7, 252, 1575, 2800, 1575, 252, 7;

%e 8, 392, 3528, 9800, 9800, 3528, 392, 8;

%e 9, 576, 7056, 28224, 44100, 28224, 7056, 576, 9;

%e 10, 810, 12960, 70560, 158760, 158760, 70560, 12960, 810, 10;

%e 11, 1100, 22275, 158400, 485100, 698544, 485100, 158400, 22275, 1100, 11;

%t Flatten[Table[Table[Binomial[n, m]/Beta[m + 1, n - m + 1], {m, 0, n}], {n, 0, 10}]]

%Y Cf. A037965

%K nonn,easy,tabl

%O 0,2

%A _Roger L. Bagula_, May 25 2010

%E Edited by the Assoc. Eds. of the OEIS - Jun 27 2010

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 17 16:51 EDT 2019. Contains 328120 sequences. (Running on oeis4.)