[seqfan] Re: A079039(8), decreasing trunc(cosh(n))

Richard Mathar mathar at strw.leidenuniv.nl
Wed Jul 28 14:17:35 CEST 2010

http://list.seqfan.eu/pipermail/seqfan/2010-July/005445.html responded

zs> Subject: [seqfan] Re: A079039(8), decreasing trunc(cosh(n))
zs> 1. Mmca code with 2000-digit accuracy gives:
zs> (assuming that fractional part  of cos(0)=3D1
zs> as  in  A079039)
zs> 1, 3, 22, 29, 45, 75, 135, 259, 863, 1786, 2483, 2538

Indeed, confirmed. The cosh() grow large exponentially, and one has to turn
the number of digits higher with diligence for the followup terms to get
meaningful post-dot digits.


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