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 A228282 #10 Sep 01 2013 22:37:32 %S A228282 13,60,1034,10414,126119,1428523,16566199,190540884,2197847780, %T A228282 25325358687,291935092921,3364727410265,38782728207101, %U A228282 447011297075966,5152298718205939,59385855860517581,684486816741728022 %N A228282 Number of nX7 binary arrays with top left value 1 and no two ones adjacent horizontally, vertically or nw-se diagonally. %C A228282 Column 7 of A228285 %H A228282 R. H. Hardin, <a href="/A228282/b228282.txt">Table of n, a(n) for n = 1..210</a> %F A228282 a(n) = a(n-1) +85*a(n-2) +432*a(n-3) +192*a(n-4) -3711*a(n-5) -5096*a(n-6) +21164*a(n-7) +27340*a(n-8) -112654*a(n-9) -37244*a(n-10) +477721*a(n-11) -464722*a(n-12) -897815*a(n-13) +3102284*a(n-14) -4149918*a(n-15) +2761082*a(n-16) -138325*a(n-17) -1353257*a(n-18) +942033*a(n-19) +64683*a(n-20) -365483*a(n-21) +80904*a(n-22) +92350*a(n-23) -27097*a(n-24) -23292*a(n-25) +2585*a(n-26) +5635*a(n-27) +1405*a(n-28) -561*a(n-29) -545*a(n-30) -173*a(n-31) -14*a(n-32) +5*a(n-33) +a(n-34) %e A228282 Some solutions for n=4 %e A228282 ..1..0..1..0..1..0..1....1..0..1..0..1..0..1....1..0..0..0..0..0..0 %e A228282 ..0..0..0..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0 %e A228282 ..0..0..0..0..0..0..1....0..0..0..0..0..0..1....0..0..1..0..1..0..1 %e A228282 ..0..0..1..0..0..0..0....1..0..1..0..1..0..0....0..1..0..0..0..0..0 %Y A228282 See A228277-A228285, especially the latter. %K A228282 nonn %O A228282 1,1 %A A228282 _R. H. Hardin_ Aug 19 2013 %E A228282 Edited by _N. J. A. Sloane_, Aug 22 2013