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 A194483 #8 Dec 09 2017 03:57:46 %S A194483 0,0,1,165,4135,47010,337860,1790472,7622340,27489825,87018360, %T A194483 247874770,647091588,1569661600,3576049620,7716906900,15881735580, %U A194483 31347485274,59618165895,109678780695,195827638105,340301983890,576974687080 %N A194483 Number of ways to arrange 6 indistinguishable points on an n X n X n triangular grid so that no four points are in the same row or diagonal. %C A194483 Column 6 of A194485. %H A194483 R. H. Hardin, <a href="/A194483/b194483.txt">Table of n, a(n) for n = 1..29</a> %F A194483 Empirical: a(n) = (1/46080)*n^12 + (1/7680)*n^11 - (1/3072)*n^10 - (137/23040)*n^9 + (871/46080)*n^8 + (3107/161280)*n^7 - (5573/46080)*n^6 + (1157/23040)*n^5 + (2627/11520)*n^4 - (1121/5760)*n^3 - (181/1440)*n^2 + (11/84)*n %e A194483 Some solutions for 5 X 5 X 5: %e A194483 ......0..........1..........0..........0..........0..........0..........0 %e A194483 .....0.1........1.0........0.1........0.1........0.1........1.0........1.0 %e A194483 ....0.1.0......0.1.1......0.0.1......1.0.1......0.1.0......0.1.0......0.1.1 %e A194483 ...0.1.1.0....1.0.0.0....0.1.0.1....1.0.1.1....1.0.0.1....0.1.0.0....0.1.0.1 %e A194483 ..0.0.1.1.0..0.0.1.0.0..1.0.0.1.0..0.0.0.0.0..1.0.0.0.1..0.0.1.1.1..1.0.0.0.0 %K A194483 nonn %O A194483 1,4 %A A194483 _R. H. Hardin_, Aug 26 2011