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A169833
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a(n) = 25*2^(n+3) - (198+392*n/3+36*n^2+10*n^3/3).
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1
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2, 32, 170, 596, 1690, 4232, 9802, 21580, 45946, 95680, 196362, 399172, 806490, 1623096, 3258570, 6532092, 13082042, 26185200, 52395146, 104819060, 209671322, 419380712, 838804810, 1677658796, 3355373050, 6710808352, 13421686282, 26843450020, 53686985946
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OFFSET
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0,1
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COMMENTS
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The formula given in the reference (in Eq. (9)) is wrong.
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LINKS
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FORMULA
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G.f.: 2*(1+10*x+3*x^2-4*x^3)/[(1-2*x)*(1-x)^4]
a(n)-6*a(n-1)+14*a(n-2)-16*a(n-3)+9*a(n-4)-2*a(n-5) = 0, with n>4. (End)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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