Search: id:A146899
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%I A146899
%S A146899 1,4,4,2,3,2,6,5,5,6,3,16,10,16,3,8,22,36,36,22,8,4,14,28,35,28,14,4,10,
%T A146899 18,42,63,63,42,18,10,5,46,60,105,126,105,60,46,5
%N A146899 A additive term polynomial as a stand alone polynomial: t0(n,m)=If[Mod[2*Binomial[n, 
               m], 2] - Mod[Binomial[n, m], 2] == 0, Binomial[n, m]/2, Binomial[n, 
               m] + 1]; p(x,n)=Sum[t[n, m]*x^m*(1 + x^(n - 2*m)), {m, 1, n - 1}]/
               (2*x)
%C A146899 Row sums are:{1, 8, 7, 22, 48, 132, 127, 266, 558}.
%F A146899 t0(n,m)=If[Mod[2*Binomial[n, m], 2] - Mod[Binomial[n, m], 2] == 0, Binomial[n, 
               m]/2, Binomial[n, m] + 1]; p(x,n)=Sum[t[n, m]*x^m*(1 + x^(n - 2*m)), 
               {m, 1, n - 1}]/(2*x); t(n,m)=coefficients(p(x,n)).
%e A146899 {1}, {4, 4}, {2, 3, 2}, {6, 5, 5, 6}, {3, 16, 10, 16, 3}, {8, 22, 36, 
               36, 22, 8}, {4, 14, 28, 35, 28, 14, 4}, {10, 18, 42, 63, 63, 42, 
               18, 10}, {5, 46, 60, 105, 126, 105, 60, 46, 5}
%t A146899 Clear[t, p, x, n]; t[n_, m_] = If[Mod[2*Binomial[n, m], 2] - Mod[Binomial[n, 
               m], 2] == 0, Binomial[n, m]/2, Binomial[n, m] + 1]; p[x_, n_] = Sum[t[n, 
               m]*x^m*(1 + x^(n - 2*m)), {m, 1, n - 1}]/(2*x); Table[CoefficientList[FullSimplify[ExpandAll[p[x, 
               n]]], x], {n, 0, 10}]; Flatten[%]
%Y A146899 Sequence in context: A002581 A161778 A099655 this_sequence A031351 A068923 
               A103714
%Y A146899 Adjacent sequences: A146896 A146897 A146898 this_sequence A146900 A146901 
               A146902
%K A146899 nonn
%O A146899 2,2
%A A146899 Roger L. Bagula (rlbagulatftn(AT)yahoo.com), Nov 02 2008

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