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 A218070 #8 Jul 22 2025 23:48:09 %S A218070 128,754,22228,424332,9519284,214514380,4803404048,109134107828, %T A218070 2464428175794,55852094761914,1264209426949652,28632655998634008, %U A218070 648354729148697522,14682760579143673998,332496265279252340092 %N A218070 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..1 7Xn array. %C A218070 Row 7 of A218064 %H A218070 R. H. Hardin, <a href="/A218070/b218070.txt">Table of n, a(n) for n = 1..33</a> %e A218070 Some solutions for n=3 %e A218070 ..1..0..0....1..1..1....1..1..1....1..0..1....1..0..1....0..0..1....0..0..1 %e A218070 ..0..0..1....1..1..1....1..0..1....0..0..1....0..0..1....1..1..0....1..0..1 %e A218070 ..0..0..1....1..0..0....0..0..1....0..0..0....0..0..0....0..0..0....0..0..0 %e A218070 ..0..0..1....0..0..0....1..0..1....1..0..0....1..0..1....0..1..1....1..0..1 %e A218070 ..0..0..1....0..0..0....0..0..1....1..0..1....0..0..0....1..1..0....1..0..0 %e A218070 ..1..1..1....1..0..0....1..0..0....0..0..1....1..0..1....0..0..0....0..0..1 %e A218070 ..1..0..0....0..0..1....0..0..0....0..0..0....0..0..0....0..0..1....1..1..1 %K A218070 nonn %O A218070 1,1 %A A218070 _R. H. Hardin_ Oct 19 2012