deletions | additions       diff --git a/untitled.tex b/untitled.tex  index 4510208..9bf528c 100644  --- a/untitled.tex  +++ b/untitled.tex 
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a_k = 4\cdot2^{k-2}\\  a_{k-1} = -(k-1)2^{k-3} \\  a_{k-2} = (k-2)(k+1)2^{k-5} \\  a_{k-3} = \frac{2^{k-7}}{3}(k-3)(38+(k-3)((k-3)+9))\\ \frac{2^{k-7}}{3}(38(k-3)+9(k-3)^2+(k-3)^3)\\  a_{k-4} = \frac{2^{k-11}}{3}(378+179(k-4)+18(k-4)^2+(k-4)^3) \\  a_{k-5} = \frac{2^{k-13}}{15}(9864(k-5)+3030(k-5)^2+515(k-5)^3+30(k-5)^4+(k-5)^5) \\  a_{k-6} = \frac{2\cdot2^{n-17}}{45}(125640(k-6)+90634(k-6)^2+12915(k-6)^3+1165(k-6)^4+45(k-6)^5+(k-6)^6)