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A251528
Number of ways to place any number of black and any number of white nonattacking knights on a (n+2) X (3+2) board.
1
318659, 11314071, 463425639, 17145057973, 629694824303, 23667617769817, 891996903006527, 33481355214548009, 1258684591767307311, 47365710615235761413, 1782764221799264814205, 67097943667181977772419
OFFSET
1,1
COMMENTS
Column 3 of A251531.
LINKS
EXAMPLE
Some solutions for n=1
..0..0..0..0..0....0..0..2..2..0....0..2..0..0..0....0..0..0..0..0
..0..2..2..2..0....0..0..1..2..2....0..0..1..0..2....0..2..0..1..0
..0..2..2..0..2....1..2..0..0..0....0..2..2..1..1....2..1..2..2..1
CROSSREFS
Cf. A251531.
Sequence in context: A153749 A186623 A202468 * A253341 A210317 A205931
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 04 2014
STATUS
approved