A254913 - OEIS

A254913

Number of (7+2) X (n+2) 0..1 arrays with every 3 X 3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

%I #6 Jun 22 2021 14:32:02

%S 616608,268310,73167,38752,21843,16493,10974,10203,10488,11818,12925,

%T 15168,18127,21500,26459,31278,34998,41431,49279,56961,66198,77601,

%U 89779,104252,120811,139506,160068,182670,208909,238276,269065,303271,341491

%N Number of (7+2) X (n+2) 0..1 arrays with every 3 X 3 subblock sum of the two sums of the diagonal and antidiagonal minus the two minimums of the central column and central row nondecreasing horizontally, vertically and ne-to-sw antidiagonally.

%C Row 7 of A254907.

%H R. H. Hardin, <a href="/A254913/b254913.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..0..0....0..0..0....1..0..0....0..1..0....0..1..0....0..1..0....0..0..0

%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..1..0....0..0..0

%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..1..0....0..0..1

%e ..0..1..1....0..1..0....0..1..1....1..1..0....1..0..0....1..1..1....0..0..1

%e ..0..0..0....0..1..1....0..0..1....1..0..0....1..0..0....1..0..1....0..0..0

%e ..0..0..1....1..1..1....1..1..1....1..1..1....0..0..0....0..0..1....1..0..0

%e ..1..0..1....1..0..0....1..1..1....0..1..1....1..1..0....1..1..0....1..0..1

%e ..1..1..1....1..0..0....1..1..1....1..1..0....0..1..1....0..0..0....1..0..0

%e ..1..1..1....1..1..1....1..0..1....0..0..1....0..0..1....1..1..1....1..1..1

%Y Cf. A254907.

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 10 2015