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 A200275 #7 Jul 22 2025 15:46:23 %S A200275 2,5,8,13,26,53,112,197,302,465,688,1013,1406,1995,2790,3759,4990, %T A200275 6419,8132,10281,13134,16521,20352,24767,30018,36095,43022,51469, %U A200275 60976,71993,84356,98137,113366,130095,150630,173315,198134,225225,254604,287725 %N A200275 Number of 0..n arrays x(0..7) of 8 elements with zero 5th differences. %C A200275 Row 6 of A200272 %H A200275 R. H. Hardin, <a href="/A200275/b200275.txt">Table of n, a(n) for n = 1..136</a> %e A200275 Some solutions for n=6 %e A200275 ..5....0....1....0....0....1....6....6....0....3....4....1....6....0....2....1 %e A200275 ..5....0....1....0....4....1....1....2....5....2....2....5....1....5....1....6 %e A200275 ..5....0....1....0....5....1....1....1....5....3....4....6....1....5....2....6 %e A200275 ..4....0....1....1....5....2....2....1....4....4....6....6....3....3....3....5 %e A200275 ..2....0....1....3....5....4....2....1....4....4....6....6....5....1....3....5 %e A200275 ..0....0....1....5....5....6....1....1....5....3....4....6....6....0....2....6 %e A200275 ..0....0....1....5....4....6....1....2....5....2....2....5....6....0....1....6 %e A200275 ..5....0....1....0....0....1....6....6....0....3....4....1....6....0....2....1 %K A200275 nonn %O A200275 1,1 %A A200275 _R. H. Hardin_ Nov 15 2011