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!)
A131777 5*A065941 - 4*A049310. 4

%I #5 Mar 30 2012 17:39:24

%S 1,5,1,1,5,1,5,-3,10,1,1,5,3,10,1,5,-7,20,-1,15,1,1,5,1,20,10,15,1,5,

%T -11,30,-15,50,6,20,1,1,5,-5,30,15,50,22,20,1,5,-15,40,-45,105,-9,100,

%U 18,25,1

%N 5*A065941 - 4*A049310.

%C Row sums = A022096(n-1).

%F 5*A065941 - 4*A049310 as infinite lower triangular matrices.

%e First few rows of the triangle are:

%e 1;

%e 5, 1

%e 1, 5, 1;

%e 5, -3, 10, 1;

%e 1, 5, 3, 10, 1;

%e 5, -7, 20, -1, 15, 1;

%e 1, 5, 1, 20, 10, 15, 1;

%e ...

%Y Cf. A131774, A131775, A131776, A065941, A049310, A022096.

%K tabl,sign

%O 1,2

%A _Gary W. Adamson_, Jul 14 2007

%E Corrected A-number in row sums reference _R. J. Mathar_, Jun 16 2009

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 March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)