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 A200079 #6 Jul 22 2025 15:40:20 %S A200079 1,6,12,26,58,108,202,394,468,848,2560,7740,11372,28356,20660,20032, %T A200079 68026,312678,662542,1536878,812306,461910,1466416,10325202 %N A200079 Number of 0..5 arrays x(0..n) of n+1 elements with zero n-1st differences. %C A200079 Column 5 of A200082 %e A200079 Some solutions for n=6 %e A200079 ..2....0....2....0....4....0....1....5....2....4....2....3....0....2....5....4 %e A200079 ..5....4....2....0....3....2....0....0....0....2....0....1....0....1....1....2 %e A200079 ..3....3....2....3....2....4....1....0....3....0....1....3....1....2....1....2 %e A200079 ..1....2....2....4....2....4....2....1....5....0....2....5....3....3....3....3 %e A200079 ..1....3....2....2....3....2....2....1....4....2....2....5....5....3....5....4 %e A200079 ..2....5....2....0....4....0....1....0....2....4....2....3....5....2....5....4 %e A200079 ..0....4....2....5....3....2....0....0....5....2....5....1....0....1....1....2 %K A200079 nonn %O A200079 1,2 %A A200079 _R. H. Hardin_ Nov 13 2011