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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A242503 Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 5.

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%I A242503 #7 May 20 2014 02:42:39
%S A242503 1,0,5,7,15,49,71,196,394,753,1746,3285,6865,14124,27445,56661,111892,
%T A242503 222222,446524,876876,1744353,3448783,6782633,13411528,26346074,
%U A242503 51799306,101840098,199601828,391637976,767247094,1501758784,2939789022,5747749147,11235696151
%N A242503 Number of compositions of n, where the difference between the number of odd parts and the number of even parts is 5.
%C A242503 With offset 10 number of compositions of n, where the difference between the number of odd parts and the number of even parts is -5.
%H A242503 Alois P. Heinz, <a href="/A242503/b242503.txt">Table of n, a(n) for n = 5..1000</a>
%F A242503 Recurrence (for n>=9): (n-5)*(n-1)*n*(n+10)*(16*n^4 - 40*n^2 - 9991)*a(n) = -800*(n-6)*(n-1)*(n+1)*(n+9)*(2*n-1)*a(n-1) + 2*n*(16*n^7 + 48*n^6 + 280*n^5 - 1920*n^4 - 11691*n^3 - 5023*n^2 - 167795*n + 7975)*a(n-2) + 2*(n-1)*(n+1)*(2*n-1)*(16*n^5 + 48*n^4 - 16*n^3 + 292*n^2 - 9645*n + 7200)*a(n-3) - (n-4)*n*(n+1)^2*(16*n^4 + 64*n^3 + 56*n^2 - 16*n - 10015)*a(n-4). - _Vaclav Kotesovec_, May 20 2014
%Y A242503 Column k=5 of A242498.
%K A242503 nonn
%O A242503 5,3
%A A242503 _Alois P. Heinz_, May 16 2014