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A189331 Number of nondecreasing arrangements of 8 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 1

%I #5 Mar 31 2012 12:36:15

%S 2,14,28,70,84,179,157,321,283,461,390,720,482,784,747,988,684,1299,

%T 796,1371,1121,1395,973,2066,1061,1707,1531,2058,1207,2624,1282,2386,

%U 1968,2303,1599,3439,1482,2615,2372,3304,1705,3744,1798,3430,2993,3157,1975

%N Number of nondecreasing arrangements of 8 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 Row 6 of A189326

%H R. H. Hardin, <a href="/A189331/b189331.txt">Table of n, a(n) for n = 1..200</a>

%e Some solutions for n=3

%e ..0....0....1....1....0....1....1....1....2....1....0....1....3....0....0....1

%e ..1....3....1....1....1....3....1....1....3....1....1....1....3....1....1....1

%e ..1....3....1....1....1....3....1....2....3....1....1....1....3....1....1....1

%e ..1....3....1....2....2....3....2....3....3....1....2....1....3....1....1....1

%e ..2....3....2....2....3....3....3....3....3....1....2....1....3....1....1....1

%e ..3....3....3....2....3....3....3....3....3....1....2....2....3....2....1....2

%e ..3....3....3....3....3....3....3....3....3....2....3....3....3....3....2....2

%e ..3....3....3....3....3....3....3....3....3....3....3....3....3....3....3....3

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 20 2011

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Last modified April 24 15:52 EDT 2024. Contains 371961 sequences. (Running on oeis4.)