%I #17 Dec 09 2024 10:41:42
%S 0,1,8,15,624,35,117648,4095,531440,9999,25937424600,20735,
%T 23298085122480,7529535,2562890624,4294967295,48661191875666868480,
%U 34012223,104127350297911241532840,25599999999,7355827511386640,26559922791423,907846434775996175406740561328,110075314175
%N a(n) = n^phi(n) - 1.
%H Harry J. Smith, <a href="/A066916/b066916.txt">Table of n, a(n) for n = 1..100</a>
%F a(n) = A062981(n) - 1.
%t Table[n^EulerPhi[n]-1,{n,30}] (* _Harvey P. Dale_, May 06 2015 *)
%o (PARI) a(n) = { n^eulerphi(n) - 1 } \\ _Harry J. Smith_, Apr 06 2010
%Y Cf. A000010, A062981, A066727, A066915.
%K nonn
%O 1,3
%A _Jason Earls_, Jan 23 2002