cp's OEIS Frontend

A200445 Number of 0..n arrays x(0..8) of 9 elements with zero 4th differences.

%I A200445 #7 Jul 22 2025 15:49:09
%S A200445 2,3,4,5,6,9,12,17,22,37,52,71,94,117,148,197,250,305,364,453,546,655,
%T A200445 768,897,1050,1227,1412,1623,1846,2121,2400,2729,3066,3417,3824,4289,
%U A200445 4774,5285,5812,6447,7094,7799,8516,9309,10190,11117,12072,13101,14170
%N A200445 Number of 0..n arrays x(0..8) of 9 elements with zero 4th differences.
%C A200445 Row 5 of A200443
%H A200445 R. H. Hardin, <a href="/A200445/b200445.txt">Table of n, a(n) for n = 1..200</a>
%e A200445 Some solutions for n=10
%e A200445 .10....5....9....8....8...10....3...10....7....6....3....0....2....1....9....7
%e A200445 ..9....5....9....4....7....6....3....3...10....3....7....1....6....5....8....3
%e A200445 ..8....5....9....3....6....3....3....0...10....1....8....2....7....6....7....2
%e A200445 ..7....5....9....4....5....1....3....0....8....0....7....3....6....5....6....3
%e A200445 ..6....5....9....6....4....0....3....2....5....0....5....4....4....3....5....5
%e A200445 ..5....5....9....8....3....0....3....5....2....1....3....5....2....1....4....7
%e A200445 ..4....5....9....9....2....1....3....8....0....3....2....6....1....0....3....8
%e A200445 ..3....5....9....8....1....3....3...10....0....6....3....7....2....1....2....7
%e A200445 ..2....5....9....4....0....6....3...10....3...10....7....8....6....5....1....3
%K A200445 nonn
%O A200445 1,1
%A A200445 _R. H. Hardin_ Nov 18 2011