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A252443 Number of (n+2)X(3+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 3 1

%I #4 Dec 17 2014 11:09:27

%S 9062,131202,2091042,30491181,454665875,6833055569,102043139454,

%T 1526189064960,22840267867281,341629869985739,5110403797875856,

%U 76451550737884426,1143662281602106798,17108429658444615062

%N Number of (n+2)X(3+2) 0..2 arrays with every 3X3 subblock row, column, diagonal and antidiagonal sum less than 3

%C Column 3 of A252447

%H R. H. Hardin, <a href="/A252443/b252443.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 17 2014

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Last modified April 19 23:15 EDT 2024. Contains 371798 sequences. (Running on oeis4.)