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 A218528 #7 Jul 22 2025 23:59:02 %S A218528 16384,410218,340133516,64278999490,23498366579584,7051080210074740, %T A218528 2345237392530015812,767685099510019845022 %N A218528 Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 7Xn array. %C A218528 Row 7 of A218522 %e A218528 Some solutions for n=3 %e A218528 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 %e A218528 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 %e A218528 ..0..0..0....0..0..0....0..0..0....0..0..2....0..0..0....0..0..0....0..0..0 %e A218528 ..1..0..1....3..0..3....1..0..2....0..0..2....1..0..3....0..1..3....2..0..3 %e A218528 ..3..1..2....3..2..1....2..2..3....3..0..0....1..0..3....2..0..1....3..3..3 %e A218528 ..2..0..2....1..1..1....2..2..2....0..0..1....0..0..0....0..0..2....3..1..1 %e A218528 ..0..0..1....1..2..2....3..2..2....1..2..2....0..0..3....2..2..2....3..0..0 %K A218528 nonn %O A218528 1,1 %A A218528 _R. H. Hardin_ Oct 31 2012