login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A143352 Triangle read by rows, A051731 * A054524 = (A051731)^2 * A128407; 1<=k<=n. 0

%I #2 Mar 30 2012 17:25:31

%S 1,2,-1,2,0,-1,3,-2,0,0,2,0,0,0,-1,4,-2,-2,0,0,1,2,0,0,0,0,0,-1,4,-3,

%T 0,0,0,0,0,0,3,0,-2,0,0,0,0,0,0,4,-2,0,0,-2,0,0,0,0,1,2,0,0,0,0,0,0,0,

%U 0,0,-1,6,-4,-3,0,0,2,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,0,0,-1,4,-2,0,0,0,0,-2,0,0,0,0,0,0,1

%N Triangle read by rows, A051731 * A054524 = (A051731)^2 * A128407; 1<=k<=n.

%C Left border = d(n), A000010.

%C Right border = mu(n), A008683.

%C Row sums = 1.

%F Triangle read by rows, A051731 * A054524 = (A051731)^2 * A128407; 1<=k<=n

%e First few rows of the triangle =

%e 1;

%e 2, -1;

%e 2, 0, -1;

%e 3, -2, 0, 0;

%e 2, 0, 0, 0, -1

%e 4, -2, -2, 0, 0, 1;

%e 2, 0, 0, 0, 0, 0, -1;

%e 4, -3, 0, 0, 0, 0, 0, 0;

%e 3, 0, -2, 0, 0, 0, 0, 0, 0;

%e 4, -2, 0, 0, -2, 0, 0, 0, 0, 1;

%e ...

%Y Cf. A054524, A051731, A128407, A000010, A008683.

%K tabl,sign

%O 1,2

%A _Gary W. Adamson_, Aug 10 2008

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)