|
%I #12 Aug 18 2016 05:35:15
%S 1,7,21,73,341,1453,5461,21157,87381,354997,1398101,5548693,22369621,
%T 89828053,357913941,1428859477,5726623061,22928862037,91625968981,
%U 366324918613,1466015503701,5865493671253,23456248059221,93813538989397
%N a(n) is the number whose binary expansion is A153498(n).
%H G. C. Greubel, <a href="/A153497/b153497.txt">Table of n, a(n) for n = 1..500</a>
%H <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (5, -14, 50, -56, 80, -64).
%F From _R. J. Mathar_, Feb 20 2009: (Start)
%F a(n) = 5*a(n-1) - 14*a(n-2) + 50*a(n-3) - 56*a(n-4) + 80*a(n-5) - 64*a(n-6).
%F G.f.: x*(1 +2x +16x^3 -24x^4 +32x^5)/((1-x)*(1-4x)*(1+2x^2)*(1+8x^2)). (End)
%t LinearRecurrence[{5,-14,50,-56,80,-64},{1,7,21,73,341,1453},30] (* _Harvey P. Dale_, Nov 21 2012 *)
%Y Cf. A135576, A153498, A153499, A153500.
%K easy,nonn
%O 1,2
%A _Omar E. Pol_, Dec 27 2008
%E More terms from _R. J. Mathar_, Feb 20 2009
|
