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A242149 Number of length 5+5 0..n arrays with no consecutive six elements summing to more than 3*n 1

%I #4 May 05 2014 06:39:28

%S 421,19834,321320,2837837,16970962,77357343,288712815,924335053,

%T 2621131557,6736000381,15956886023,35297721979,73650614324,

%U 146121877010,277441759058,506811766161,894639234101,1531707118508,2551438684546

%N Number of length 5+5 0..n arrays with no consecutive six elements summing to more than 3*n

%C Row 5 of A242144

%H R. H. Hardin, <a href="/A242149/b242149.txt">Table of n, a(n) for n = 1..137</a>

%F Empirical: a(n) = (859693/3628800)*n^10 + (1892767/725760)*n^9 + (1563833/120960)*n^8 + (4608661/120960)*n^7 + (12804769/172800)*n^6 + (3445219/34560)*n^5 + (1069993/11340)*n^4 + (11327921/181440)*n^3 + (234169/8400)*n^2 + (2416/315)*n + 1

%e Some solutions for n=2

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

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

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

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

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

%e ..1....1....1....0....1....0....0....1....1....0....0....0....0....1....0....0

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, May 05 2014

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Last modified April 17 21:22 EDT 2024. Contains 371767 sequences. (Running on oeis4.)