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Revision History for A279632

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Coefficients in the expansion of ([s] + [2s]x + [3s]x^2 + ...)/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = e - 1, s = r/(1-r).
(history; published version)
#6 by N. J. A. Sloane at Wed Dec 21 10:48:19 EST 2016
STATUS

proposed

approved

#5 by Jon E. Schoenfield at Sun Dec 18 17:42:44 EST 2016
STATUS

editing

proposed

#4 by Jon E. Schoenfield at Sun Dec 18 17:42:42 EST 2016
FORMULA

G.f.: ([s] + [2s]x + [3s]x^2 + ...)/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = sqrt(2), s = r/(1-r).

STATUS

proposed

editing

#3 by Clark Kimberling at Sun Dec 18 17:31:20 EST 2016
STATUS

editing

proposed

#2 by Clark Kimberling at Sun Dec 18 17:12:29 EST 2016
NAME

allocated for Clark KimberlingCoefficients in the expansion of ([s] + [2s]x + [3s]x^2 + ...)/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = e - 1, s = r/(1-r).

DATA

2, -2, 3, -2, -2, 8, -14, 17, -12, -5, 34, -68, 91, -80, 11, 126, -308, 467, -488, 235, 382, -1316, 2291, -2760, 1995, 638, -5220, 10738, -14725, 13447, -3007, -18467, 47914, -74806, 80821, -43890, -51936, 201548, -363193, 450980, -347117, -55972, 782359

OFFSET

0,1

LINKS

Clark Kimberling, <a href="/A279632/b279632.txt">Table of n, a(n) for n = 0..1000</a>

FORMULA

G.f.: ([s] + [2s]x + [3s]x^2 + ...)/([r] + [2r]x + [3r]x^2 + ...); [ ] = floor, r = sqrt(2), s = r/(1-r).

MATHEMATICA

z = 100;

r = E - 1; f[x_] := f[x] = Sum[Floor[r*(k + 1)] x^k, {k, 0, z}];

s = r/(r - 1); g[x_] := g[x] = Sum[Floor[s*(k + 1)] x^k, {k, 0, z}]

CoefficientList[Series[g[x]/f[x], {x, 0, z}], x]

CROSSREFS
KEYWORD

allocated

sign,easy

AUTHOR

Clark Kimberling, Dec 18 2016

STATUS

approved

editing

#1 by Clark Kimberling at Fri Dec 16 08:19:52 EST 2016
NAME

allocated for Clark Kimberling

KEYWORD

allocated

STATUS

approved