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 A184699 #7 Jun 02 2025 03:50:44 %S A184699 1,3,12,46,156,476,1349,3571,8939,21310,48701,107233,228465,472626, %T A184699 952169,1872813,3604103,6798753,12592030,22930495,41108069,72630552, %U A184699 126596216,217879554,370555433,623223294,1037221437,1709205913 %N A184699 Number of strings of numbers x(i=1..n) in 0..5 with sum i*x(i) equal to n*5. %C A184699 Column 5 of A184703 %H A184699 R. H. Hardin, <a href="/A184699/b184699.txt">Table of n, a(n) for n = 1..163</a> %e A184699 Some solutions for n=4 %e A184699 ..3....3....0....0....0....3....1....0....3....4....3....4....2....0....3....4 %e A184699 ..4....5....4....0....5....3....3....2....2....3....1....4....3....1....0....5 %e A184699 ..3....1....0....0....2....1....3....0....3....2....1....0....4....2....3....2 %e A184699 ..0....1....3....5....1....2....1....4....1....1....3....2....0....3....2....0 %K A184699 nonn %O A184699 1,2 %A A184699 _R. H. Hardin_ Jan 20 2011