A251528 - OEIS

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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.

318659, 11314071, 463425639, 17145057973, 629694824303, 23667617769817, 891996903006527, 33481355214548009, 1258684591767307311, 47365710615235761413, 1782764221799264814205, 67097943667181977772419

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 3 of A251531.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

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