A071810

[Don Reble]

Franklin, seqfans:

1) Can anybody show that a(n+1) < 2*a(n) [for n > 1].

    It's false: the first counterexample (after a(1) and a(2)) is
    a(332) =  7231718580557676414340499974568912816859167222719
	     19907962286482385524340473747270641475071066631611
    a(333) = 14464046068617292755660165171033882640966175364732
	     39964866791504420112662134326840615877172861788249

    I, too, suspect the limit statement, but mere computation won't
    prove anything.

-----

njas:

    I might as well fill it, eh?

%I A071810
%S A071810 1,3,5,7,12,20,35,65,122,237,448,846,1629,3157,6159,12052,23484,45731,
%T A071810 89394,175742,346214,681850,1344838,2657654,5253640,10374991,20471626,
%U A071810 40401929,79871387,158182899,313402605,620776215,1228390086,2430853648
%C A071810 a(333) > 2*a(332) -- Don Reble, Sep 07 2006
%E A071810 More terms from Don Reble (djr(AT)nk.ca), Sep 07 2006

-- 
Don Reble  djr at nk.ca


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