cp's OEIS Frontend

A189333 Number of nondecreasing arrangements of 10 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 A189333 #7 Jul 22 2025 11:42:23
%S A189333 2,18,40,120,157,393,374,866,775,1426,1261,2448,1761,3006,2890,4232,
%T A189333 3063,5605,3802,6615,5533,6899,5188,10472,5864,8986,7964,11411,7088,
%U A189333 13830,7645,13841,10360,12801,9755,19139,9300,15031,12334,20347,10558,20918
%N A189333 Number of nondecreasing arrangements of 10 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 A189333 Row 8 of A189326
%H A189333 R. H. Hardin, <a href="/A189333/b189333.txt">Table of n, a(n) for n = 1..200</a>
%e A189333 Some solutions for n=3
%e A189333 ..0....0....1....1....1....1....1....0....1....0....0....0....1....1....0....1
%e A189333 ..1....1....1....1....1....1....1....1....1....1....1....1....1....1....3....3
%e A189333 ..1....1....1....1....1....1....2....1....2....1....1....1....1....1....3....3
%e A189333 ..2....1....1....1....2....2....3....1....2....2....1....1....1....1....3....3
%e A189333 ..2....1....1....1....3....2....3....1....3....3....1....1....1....1....3....3
%e A189333 ..3....2....1....1....3....2....3....1....3....3....1....1....2....1....3....3
%e A189333 ..3....2....1....1....3....3....3....2....3....3....1....1....3....2....3....3
%e A189333 ..3....3....2....1....3....3....3....2....3....3....1....2....3....2....3....3
%e A189333 ..3....3....3....2....3....3....3....2....3....3....2....3....3....2....3....3
%e A189333 ..3....3....3....3....3....3....3....3....3....3....3....3....3....3....3....3
%K A189333 nonn
%O A189333 1,1
%A A189333 _R. H. Hardin_ Apr 20 2011