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A304934
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a(0) = 0, a(1) = 1 and a(n) = 2*a(n-1)/(n-1) + 64*a(n-2) for n > 1.
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2
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0, 1, 2, 66, 172, 4310, 12732, 280084, 894872, 18149094, 61304940, 1173803004, 4136934888, 75812881404, 276427353048, 4891514031720, 18343552465968, 315349842088326, 1211087339244108, 20316955153568876, 79648216569893320, 1308249951485397396
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OFFSET
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0,3
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COMMENTS
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Let a(0) = 0, a(1) = 1 and a(n) = 2*m*a(n-1)/(n-1) + k^2*a(n-2) for n > 1.
Then G.f. is x/(2*m) * d/dx ((1 + k*x)/(1 - k*x))^(m/k).
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LINKS
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FORMULA
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G.f.: x/(1-8*x)^2 * ((1-8*x)/(1+8*x))^(7/8).
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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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