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A256900 Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally and vertically 1

%I #4 Apr 12 2015 08:52:36

%S 34698,137381,721051,2212280,4687873,9831933,14332984,24894558,

%T 39386679,61894886,96974489,151773647,239095657,367120758,555977303,

%U 840547925,1262889781,1870244703,2741127912,3999331686,5791178973,8305518851

%N Number of (n+2)X(4+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally and vertically

%C Column 4 of A256904

%H R. H. Hardin, <a href="/A256900/b256900.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%Y Cf. A256904

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 12 2015

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Last modified April 24 08:59 EDT 2024. Contains 371935 sequences. (Running on oeis4.)