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A265980
Number of nX6 integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors less than itself.
0
55, 52555, 8061815, 3698768651, 1978988798923, 809078767234538, 379214568001506095, 181393966278900942665, 83340040710624348072169
OFFSET
1,1
COMMENTS
Column 6 of A265981.
EXAMPLE
Some solutions for n=2
..1..4..1..4..2..0....1..1..3..4..3..1....0..0..0..2..0..0....1..4..0..0..0..2
..0..0..0..2..3..0....2..0..0..2..0..1....0..3..3..2..4..1....0..0..0..0..0..0
CROSSREFS
Cf. A265981.
Sequence in context: A196428 A231907 A027580 * A287053 A046194 A172808
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 19 2015
STATUS
approved