A269828 - OEIS

%I #4 Mar 05 2016 19:27:42

%S 30720,55265336,65284613232,71730749075588,74936429415811576,

%T 75641344262475714972,74703200829032822656704,

%U 72410184537396417428483772,69247970979790014999193560760,65469795278283248240466444354336

%N Number of nX7 0..4 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling four exactly once.

%C Column 7 of A269829.

%H R. H. Hardin, <a href="/A269828/b269828.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..3..0..4..1..4..4..1. .1..1..2..4..4..0..3. .0..0..2..4..2..2..4

%Y Cf. A269829.

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 05 2016