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 A218527 #7 Jul 22 2025 23:58:55 %S A218527 4096,63592,20655650,1884162624,300890728324,40522780697742, %T A218527 5977895789290552,864832910760902306 %N A218527 Number of 6Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 6Xn array. %C A218527 Row 6 of A218522 %e A218527 Some solutions for n=3 %e A218527 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 %e A218527 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 %e A218527 ..1..0..2....0..0..3....0..0..0....1..0..0....2..0..2....2..0..3....3..0..2 %e A218527 ..1..0..2....1..1..3....0..0..0....1..0..0....1..1..1....1..1..1....1..0..1 %e A218527 ..0..0..3....1..1..2....0..2..2....3..0..1....2..0..0....3..1..3....0..0..2 %e A218527 ..2..0..0....3..2..3....3..2..2....0..0..0....3..0..1....3..1..1....0..0..0 %K A218527 nonn %O A218527 1,1 %A A218527 _R. H. Hardin_ Oct 31 2012