cp's OEIS Frontend

A189332 Number of nondecreasing arrangements of 9 numbers in 0..n with the last equal to n and each after the second equal to the sum of one or two of the preceding four.

%I A189332 #7 Jul 22 2025 11:42:16
%S A189332 2,16,34,94,119,275,253,548,477,845,725,1375,951,1608,1522,2126,1511,
%T A189332 2758,1809,3130,2557,3125,2312,4710,2551,3930,3502,4942,2922,6053,
%U A189332 3105,5798,4483,5381,4049,8173,3634,6207,5339,8368,4204,8795,4353,8395,7148
%N A189332 Number of nondecreasing arrangements of 9 numbers in 0..n with the last equal to n and each after the second equal to the sum of one or two of the preceding four.
%C A189332 Row 7 of A189326
%H A189332 R. H. Hardin, <a href="/A189332/b189332.txt">Table of n, a(n) for n = 1..200</a>
%e A189332 Some solutions for n=3
%e A189332 ..0....0....1....0....1....1....1....0....1....1....0....1....1....0....1....1
%e A189332 ..1....1....1....1....1....1....1....1....1....1....3....1....3....1....1....1
%e A189332 ..1....1....1....1....1....1....1....1....1....2....3....1....3....1....1....2
%e A189332 ..1....1....1....2....1....2....1....1....1....2....3....1....3....1....2....3
%e A189332 ..1....1....2....2....1....2....1....1....1....2....3....1....3....2....3....3
%e A189332 ..1....1....2....2....2....2....2....2....2....3....3....1....3....2....3....3
%e A189332 ..2....1....3....3....2....3....2....3....3....3....3....2....3....2....3....3
%e A189332 ..2....2....3....3....2....3....3....3....3....3....3....2....3....3....3....3
%e A189332 ..3....3....3....3....3....3....3....3....3....3....3....3....3....3....3....3
%K A189332 nonn
%O A189332 1,1
%A A189332 _R. H. Hardin_ Apr 20 2011