login
Euler's totient of (prime(n)+1)*(prime(n+1)+1)/4.
2

%I #8 Jul 13 2013 12:02:55

%S 2,2,4,8,12,36,24,32,48,64,144,216,120,160,216,216,240,480,384,432,

%T 576,384,432,1008,1344,768,864,720,1440,1152,1280,1320,1056,1200,1440,

%U 2808,3120,1920,2016,2016,1728,2304,3072,5760,2400,4160,4992,3456,3168,6336

%N Euler's totient of (prime(n)+1)*(prime(n+1)+1)/4.

%C a(n)=A000010(A079079(n)).

%H Reinhard Zumkeller, <a href="/A079092/b079092.txt">Table of n, a(n) for n = 1..10000</a>

%o (Haskell)

%o a079092 = a000010 . a079079 -- _Reinhard Zumkeller_, Oct 09 2012

%K nonn

%O 1,1

%A _Reinhard Zumkeller_, Dec 22 2002