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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A144194 Square array (6x6) read by rows. 1
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, 0, 0 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

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

LINKS

H.S. Wilf The Redheffer matrix of a partially ordered set

J. Davies Permutation Calculator

EXAMPLE

The array is:

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

1,0,0,0,0,0

CROSSREFS

Cf. A143104, A002033, A144193, A144195.

Sequence in context: A169672 A011672 A202238 * A144196 A156659 A011671

Adjacent sequences:  A144191 A144192 A144193 * A144195 A144196 A144197

KEYWORD

fini,full,nonn,tabf

AUTHOR

Mats O. Granvik (mgranvik(AT)abo.fi), Sep 13 2008

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

Content is available under The OEIS End-User License Agreement .

Last modified February 17 16:49 EST 2012. Contains 206058 sequences.