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

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A154557 Production array of A122848, read by row. 0

%I

%S 0,1,0,1,1,0,-1,2,1,0,3,-3,3,1,0,-15,12,-6,4,1,0,105,-75,30,-10,5,1,0,

%T -945,630,-225,60,-15,6,1,0,10395,-6615,2205,-525,105,-21,7,1,0,

%U -135135,83160,-26460,5880,-1050,168,-28,8,1,0,2027025,-1216215,374220,-79380

%N Production array of A122848, read by row.

%D E. Deutsch, L. Ferrari and S. Rinaldi, Production Matrices, Advances in Applied Mathematics, 34 (2005) pp. 101-122

%H E. Deutsch, L. Ferrari and S. Rinaldi, <a href="http://arxiv.org/abs/math/0702638">Production Matrices and Riordan arrays</a>, arXiv:math/0702638v1, 2007

%e Array starts

%e 0, 1,

%e 0, 1, 1,

%e 0, -1, 2, 1,

%e 0, 3, -3, 3, 1,

%e 0, -15, 12, -6, 4, 1,

%e 0, 105, -75, 30, -10, 5, 1,

%e 0, -945, 630, -225, 60, -15, 6, 1,

%e 0, 10395, -6615, 2205, -525, 105, -21, 7, 1,

%e 0, -135135, 83160, -26460, 5880, -1050, 168, -28, 8, 1

%e 0, 2027025, -1216215, 374220, -79380, 13230, -1890, 252, -36, 9, 1

%e Square of this array is

%e 0, 1, 1,

%e 0, 0, 3, 1,

%e 0, 0, 0, 5, 1,

%e 0, 0, 0, 0, 7, 1,

%e 0, 0, 0, 0, 0, 9, 1,

%e 0, 0, 0, 0, 0, 0, 11, 1,

%e 0, 0, 0, 0, 0, 0, 0, 13, 1,

%e 0, 0, 0, 0, 0, 0, 0, 0, 15, 1,

%e 0, 0, 0, 0, 0, 0, 0, 0, 0, 17, 1

%Y Cf. A113278, A132382, A001147.

%K sign,tabf

%O 0,8

%A _Paul Barry_, Jan 11 2009

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

License Agreements, Terms of Use, Privacy Policy .

Last modified December 9 06:57 EST 2016. Contains 278963 sequences.