A265978 Number of n X 4 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors less than itself.

11, 583, 11573, 282056, 8935989, 250833288, 7041080382, 208041110790, 6005134588534, 173028589656262, 5028214246050687, 145626831371486785, 4214456145515857209, 122142144512607793870, 3538248976950632976988, 102477470998378691193804, 2968734018953007326351295

Offset

1,1

Comments

Column 4 of A265981.

Links

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

Example

Some solutions for n=3:
..1..3..3..0....1..1..0..1....1..4..2..1....1..1..1..1....0..3..3..0
..1..0..0..1....3..0..6..0....0..0..0..3....2..0..0..2....0..0..0..0
..1..4..1..1....2..0..4..0....0..0..0..0....1..2..4..1....2..0..4..0

Crossrefs

Cf. A265981.

Sequence in context: A185203 A363460 A376460 * A263184 A370087 A288326

Adjacent sequences: A265975 A265976 A265977 * A265979 A265980 A265981

Keyword

nonn

Author

R. H. Hardin, Dec 19 2015

Status

approved