This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A303318 #4 Apr 21 2018 12:51:20 %S A303318 32,14,34,165,349,1221,7096,30280,102683,403872,1783894,7248640, %T A303318 27856927,111871711,461547267,1859721535,7397094062,29793428041, %U A303318 120739708314,486065859963,1951092593903,7859276232228,31701254570200,127635189909079 %N A303318 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. %C A303318 Row 6 of A303314. %H A303318 R. H. Hardin, <a href="/A303318/b303318.txt">Table of n, a(n) for n = 1..210</a> %F A303318 Empirical: a(n) = a(n-1) +3*a(n-2) +18*a(n-3) +87*a(n-4) +23*a(n-5) -149*a(n-6) -305*a(n-7) -678*a(n-8) -45*a(n-9) +981*a(n-10) +937*a(n-11) +1834*a(n-12) +317*a(n-13) -1968*a(n-14) -1457*a(n-15) -2157*a(n-16) -964*a(n-17) +830*a(n-18) +254*a(n-19) +161*a(n-20) +152*a(n-21) -15*a(n-22) -3*a(n-23) for n>28 %e A303318 Some solutions for n=5 %e A303318 ..0..1..1..1..0. .0..1..0..1..0. .0..1..0..1..0. .0..1..0..1..1 %e A303318 ..0..1..0..1..0. .0..1..0..1..0. .0..1..1..0..0. .0..1..0..0..0 %e A303318 ..0..0..0..1..0. .0..1..0..1..0. .0..1..0..1..0. .0..1..1..1..0 %e A303318 ..0..1..1..1..0. .0..0..0..1..0. .0..1..0..1..0. .0..1..0..1..0 %e A303318 ..0..1..0..0..0. .0..1..1..1..0. .0..1..0..1..0. .0..0..0..1..0 %e A303318 ..0..1..0..1..0. .0..1..0..1..0. .0..1..1..1..0. .0..1..0..1..0 %Y A303318 Cf. A303314. %K A303318 nonn %O A303318 1,1 %A A303318 _R. H. Hardin_, Apr 21 2018