login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A144194 Square array (6 X 6) read by rows. 1

%I

%S 0,0,0,0,0,1,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,0,0,0,0,0,1,0,1,0,0,0,

%T 0,0

%N Square array (6 X 6) read by rows.

%C Permutation contributing to the determinant that gives the 6th value of the Möbius function. Determinant of matrix is equal to -1. The array is symmetrical.

%H J. Davies, <a href="https://web.archive.org/web/20171111153945/http://juliusdavies.ca:80/andre/permutations.html">Permutation Calculator</a>

%H Herbert S. Wilf, <a href="https://arxiv.org/abs/math/0408263">The Redheffer matrix of a partially ordered set</a>, arXiv:math/0408263 [math.CO], 2004.

%e The array is:

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

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

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

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

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

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

%Y Cf. A143104, A002033, A144193, A144195.

%K fini,full,nonn,tabf

%O 1,1

%A _Mats Granvik_, Sep 13 2008

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 20 22:22 EDT 2021. Contains 348119 sequences. (Running on oeis4.)