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 A252174 #5 Jul 23 2025 13:37:11 %S A252174 6,536,1428,17092,100894,753200,4652710,29364176,177955614,1080135428, %T A252174 6499878776,39104150100,234816782208,1409805025568,8460732943882, %U A252174 50772490924064,304654183120186,1828001400070884,10968208935015636 %N A252174 Number of length n+2 0..5 arrays with the sum of the maximum minus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero. %C A252174 Column 5 of A252177 %e A252174 Some solutions for n=5 %e A252174 ..1....4....4....4....2....1....1....5....5....2....4....0....3....0....2....3 %e A252174 ..0....2....5....5....5....0....4....3....4....4....4....1....1....4....1....2 %e A252174 ..1....0....3....1....0....2....1....1....5....5....4....3....4....4....0....4 %e A252174 ..1....2....2....0....5....3....1....0....5....4....0....2....2....3....5....5 %e A252174 ..1....1....3....3....4....3....1....0....4....4....0....2....2....3....4....1 %e A252174 ..2....1....4....3....5....0....4....4....0....1....5....5....1....4....4....4 %e A252174 ..4....2....5....4....1....3....2....3....3....0....2....3....1....4....3....1 %K A252174 nonn %O A252174 1,1 %A A252174 _R. H. Hardin_, Dec 15 2014