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A225019 Number of (n+1)X(n+1) 0..2 matrices with each 2X2 permanent equal 1
81, 1935, 117959, 68599847, 61256508583, 377600972329977, 3848918646053092273, 232902549373982083370091, 26631802795042217377560514459, 15822211869785345098476275119070159 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A225027
LINKS
EXAMPLE
Some solutions for n=2
..0..2..0....1..1..1....0..2..0....0..0..0....2..0..0....2..1..1....1..1..2
..0..0..0....0..1..0....2..0..2....0..0..0....0..0..0....0..1..1....0..0..0
..1..2..1....1..1..1....0..2..2....0..2..1....2..2..2....2..2..0....0..0..1
CROSSREFS
Sequence in context: A223206 A296650 A233371 * A224312 A224376 A237957
KEYWORD
nonn
AUTHOR
R. H. Hardin Apr 24 2013
STATUS
approved

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Last modified March 4 02:53 EST 2024. Contains 370522 sequences. (Running on oeis4.)