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A162053 Number of n X n binary arrays with rows and columns, considered as binary numbers, in nondecreasing order, and an even number of ones in each row or column 0
1, 2, 3, 12, 97, 2116, 143722, 31089626, 21981849737, 51209031818644 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
Table of n, a(n) for n=1..10.
CROSSREFS
Sequence in context: A074179 A012586 A088223 * A162075 A333166 A245584
Adjacent sequences: A162050 A162051 A162052 * A162054 A162055 A162056
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 25 2009
STATUS
approved

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Last modified June 4 21:34 EDT 2024. Contains 373102 sequences. (Running on oeis4.)