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⇱ The On-Line Encyclopedia of Integer Sequences (OEIS)

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Showing entries 1-10 | older changes
Number of T_0-antichains on a labeled n-set.
#13 by Alois P. Heinz at Sun Mar 22 17:13:48 EDT 2020
STATUS
#12 by Michel Marcus at Sun Mar 22 14:45:26 EDT 2020
STATUS
#11 by Michel Marcus at Sun Mar 22 14:45:17 EDT 2020
REFERENCES
LINKS
FORMULA
EXAMPLE
STATUS
#10 by R. J. Mathar at Fri Jun 14 04:00:13 EDT 2013
STATUS
#9 by R. J. Mathar at Fri Jun 14 04:00:10 EDT 2013
AUTHOR
STATUS
#8 by Charles R Greathouse IV at Fri May 10 12:44:33 EDT 2013
EXTENSIONS
Discussion
Fri May 10
12:44
OEIS Server: https://oeis.org/edit/global/1911
#7 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010
LINKS
KEYWORD
#6 by N. J. A. Sloane at Tue Jun 01 03:00:00 EDT 2010
KEYWORD
AUTHOR
EXTENSIONS
#5 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009
LINKS
KEYWORD
#4 by N. J. A. Sloane at Fri Feb 24 03:00:00 EST 2006
FORMULA
KEYWORD