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%I #16 Dec 30 2017 09:37:14
%S -24,128406630,-1695266465052058,-4467161474022023509680,
%T 2643202687128887204371152330,5631587063815097155948902224731910,
%U -6022712388820421179671063354886818730888,3519878895631571325515625172934456394359869922,452493700789420934344344052367209646628330983653992
%N a(n) = tau((10^n)-th prime) where tau(n)=A000594(n) is Ramanujan's tau function.
%H Olivier Rozier, <a href="http://www.ipgp.fr/~rozier/math/raman.html">Ramanujan's tau function</a>
%F a(n) = A076847(10^n) = A000594(A006988(n)).
%o (PARI) {a(n) = ramanujantau(prime(10^n))}
%Y Cf. A000594, A006988, A076847, A297127.
%K sign
%O 0,1
%A _Seiichi Manyama_, Dec 30 2017