

A144199


Square array (8 X 8) read by rows.


2



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

1,1


COMMENTS

Permutation contributing to the determinant that gives the 4th value of the MÃ¶bius function. Determinant of matrix is equal to 1. The array is asymmetrical.


LINKS

Table of n, a(n) for n=1..64.
H. S. Wilf The Redheffer matrix of a partially ordered set


EXAMPLE

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


CROSSREFS

Cf. A143104, A002033, A144198, A144200.
Sequence in context: A011704 A011717 A103675 * A144201 A175861 A011701
Adjacent sequences: A144196 A144197 A144198 * A144200 A144201 A144202


KEYWORD

fini,full,nonn,tabf


AUTHOR

Mats Granvik, Sep 13 2008


STATUS

approved



