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 A241332 #6 Jul 23 2025 11:12:56 %S A241332 51,13011,3875244,1162535788,348722168314,104609549355169, %T A241332 31380712101748979,9413573643641662509,2823880131958273083335, %U A241332 847106463240283581573699,254114667346044108988181086 %N A241332 Number of 5Xn 0..3 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..3 introduced in row major order. %C A241332 Row 5 of A241328 %H A241332 R. H. Hardin, <a href="/A241332/b241332.txt">Table of n, a(n) for n = 1..167</a> %e A241332 Some solutions for n=2 %e A241332 ..0..1....0..1....0..1....0..1....0..1....0..1....0..1....0..1....0..1....0..1 %e A241332 ..1..2....0..2....0..2....2..3....2..3....0..0....1..0....0..2....2..0....2..3 %e A241332 ..0..3....1..3....2..2....0..3....1..0....2..0....2..0....1..0....2..1....1..3 %e A241332 ..0..2....3..1....2..0....2..1....1..2....2..3....2..0....2..0....1..3....0..1 %e A241332 ..0..3....2..0....1..2....1..0....2..1....2..3....3..0....3..1....1..2....1..0 %K A241332 nonn %O A241332 1,1 %A A241332 _R. H. Hardin_, Apr 19 2014