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 A214383 #5 Jul 22 2025 23:16:10 %S A214383 8,224,18480,4107248,2347567992,3366219398864,11944886965820440 %N A214383 Number of nXnXn triangular 0..7 arrays with no element lying outside the (possibly reversed) range delimited by its sw and se neighbors, and no element equal to its horizontal neighbors. %C A214383 Column 7 of A214384 %e A214383 Some solutions for n=3 %e A214383 ....3......2......3......2......6......4......4......2......7......2......4 %e A214383 ...1.5....1.3....4.1....2.7....1.6....4.1....3.5....3.1....7.6....0.5....3.4 %e A214383 ..3.1.5..0.5.3..6.1.0..1.7.2..7.0.6..4.1.4..2.6.4..7.0.2..2.7.6..0.5.0..5.0.4 %K A214383 nonn %O A214383 1,1 %A A214383 _R. H. Hardin_ Jul 14 2012