A256028 - OEIS

%I #4 Mar 13 2015 13:55:24

%S 4086,27424,223901,1736085,13744343,111505109,904174706,7347151637,

%T 59890010020,487874115891,3973213543601,32378167050225,

%U 263909697253124,2150815427720611,17528000535815815,142850512088398850

%N Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1

%C Column 7 of A256029

%H R. H. Hardin, <a href="/A256028/b256028.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

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

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

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

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

%Y Cf. A256029

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 13 2015