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A254890
Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock diagonal sum plus antidiagonal median nondecreasing horizontally and vertically.
1
35272, 149931, 822072, 4577708, 15790369, 51232136, 141957783, 315713348, 681770400, 1433996470, 2855106608, 5527208360, 10355612789, 18793033325, 33853669795, 60750807357, 108653839544, 194562098838, 348578376839
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OFFSET
1,1
COMMENTS
Column 4 of
A254894
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..210
EXAMPLE
Some solutions for n=2
..0..1..0..0..0..0....0..0..0..0..0..1....0..0..0..0..1..0....0..0..0..0..0..1
..0..1..0..1..1..0....0..1..0..0..1..1....1..1..0..0..1..0....0..0..1..0..0..1
..1..1..0..1..1..0....0..1..0..1..1..1....0..1..0..1..1..1....1..0..1..0..1..1
..1..0..0..1..1..0....0..0..1..1..0..1....0..1..0..1..1..1....0..0..1..1..1..1
CROSSREFS
Sequence in context:
A257724
A254016
A254023
*
A187855
A300762
A250978
Adjacent sequences:
A254887
A254888
A254889
*
A254891
A254892
A254893
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Feb 10 2015
STATUS
approved
