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R. H. Hardin, <a href="/A254849/b254849.txt">Table of n, a(n) for n = 1..210</a>
allocated for R. H. Hardin
Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum two
1632, 2916, 5904, 13456, 34176, 87616, 216000, 518400, 1246464, 3069504, 7729920, 19501056, 48484800, 118722816, 289380096, 710968896, 1766830464, 4410022464, 10962427392, 27051038784, 66462004800, 163578184704, 404630224128
1,1
Column 3 of A254854
Some solutions for n=4
..0..1..0..1..1....1..0..0..0..1....0..0..1..0..0....0..0..1..0..0
..0..0..1..0..1....1..1..0..1..1....0..0..0..0..1....0..0..0..0..0
..1..1..0..1..0....0..1..1..0..1....0..0..0..0..1....0..0..0..0..1
..1..1..1..0..0....0..1..0..1..0....1..0..0..0..0....0..0..0..0..0
..0..1..1..1..0....1..0..1..1..0....1..1..0..0..0....0..0..0..0..0
..1..0..0..0..1....1..1..0..0..1....0..0..0..0..0....0..1..0..0..0
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nonn
R. H. Hardin, Feb 08 2015
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allocated for R. H. Hardin
allocated
approved