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A265957 Number of nX3 integer arrays with each element equal to the number of horizontal, vertical, diagonal and antidiagonal neighbors less than itself. 1
5, 235, 2031, 31940, 1002328, 17873307, 329266534, 7935241725, 162833269398, 3241416484700, 70876286404463, 1494327583037059, 30782640480213077, 653374627522113949, 13795598605189141491, 288087129209981654443 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A265960.
LINKS
EXAMPLE
Some solutions for n=4
..1..0..2....0..0..0....0..3..0....0..1..2....2..1..2....1..1..2....0..4..1
..4..1..2....3..8..2....0..8..4....1..1..5....4..0..5....4..0..3....0..8..0
..2..8..4....2..7..3....4..0..3....1..1..4....4..0..3....0..8..4....0..0..0
..0..2..0....1..0..0....0..0..2....1..0..1....1..3..1....0..0..0....2..5..0
CROSSREFS
Cf. A265960.
Sequence in context: A142668 A330308 A157710 * A137085 A153025 A140518
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 2015
STATUS
approved

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Last modified May 19 07:43 EDT 2024. Contains 372666 sequences. (Running on oeis4.)