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 A218069 #8 Jul 22 2025 23:48:02 %S A218069 64,288,5338,66978,975296,14096488,204211050,2978543964,43337429212, %T A218069 631708431924,9201998558182,134096314110712,1953815660270370, %U A218069 28469970831713488,414834864922566790,6044649160655242312 %N A218069 Number of 6Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..1 6Xn array. %C A218069 Row 6 of A218064 %H A218069 R. H. Hardin, <a href="/A218069/b218069.txt">Table of n, a(n) for n = 1..49</a> %e A218069 Some solutions for n=3 %e A218069 ..1..0..0....0..0..1....0..0..1....1..1..0....1..0..1....1..0..0....0..0..0 %e A218069 ..1..0..1....0..0..0....0..0..1....0..0..0....0..0..1....1..0..1....1..0..1 %e A218069 ..1..0..0....0..0..0....0..0..0....0..0..1....1..0..1....0..0..0....1..0..0 %e A218069 ..0..0..0....0..0..0....1..0..0....0..0..0....0..0..1....0..0..1....0..0..0 %e A218069 ..0..0..1....0..0..1....0..0..0....1..0..0....0..0..1....1..0..1....1..0..0 %e A218069 ..1..0..0....0..0..1....0..1..1....1..0..1....1..1..1....0..0..1....1..0..0 %K A218069 nonn %O A218069 1,1 %A A218069 _R. H. Hardin_ Oct 19 2012