

A144193


Square array (5 X 5) read by rows.


2



0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0
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OFFSET

1,1


COMMENTS

Permutation contributing to the determinant that gives the 5th value of the moebius function. Determinant of matrix is equal to 1. The array is symmetrical.


LINKS

Table of n, a(n) for n=1..25.
J. Davies, Permutation Calculator
Herbert S. Wilf, The Redheffer matrix of a partially ordered set, arXiv:math/0408263 [math.CO], 2004.


EXAMPLE

The array is:
0,0,0,0,1
0,1,0,0,0
0,0,1,0,0
0,0,0,1,0
1,0,0,0,0


CROSSREFS

Cf. A143104, A002033.
Sequence in context: A179831 A094091 A080679 * A171387 A333189 A011662
Adjacent sequences: A144190 A144191 A144192 * A144194 A144195 A144196


KEYWORD

fini,full,nonn,tabf


AUTHOR

Mats Granvik, Sep 13 2008


STATUS

approved



