A390984 - OEIS

%I #15 Dec 04 2025 20:31:21

%S 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3432,

%T 4347856956317310,18363689763179745510999232280186,

%U 213022257690692114331338241853678705308069870,6169385897484953444874656921598915591988603068545019128170

%N Number of n X n grids with 7 non-attacking kings on each row.

%H Sean A. Irvine, <a href="/A390984/b390984.txt">Table of n, a(n) for n = 0..35</a>

%H Hamidreza Maleki Tirabadi, <a href="/A390984/a390984.txt">Example of a(27)</a>

%F See A390419.

%e For example of a(27) see link.

%Y Column k=7 of A390419.

%Y Cf. A387098.

%K nonn

%O 0,28

%A _Hamidreza Maleki Tirabadi_, Nov 25 2025