login
a(1) = 5, a( n) = prime(a(n-1)) - a(n-1).
9

%I #4 Mar 30 2012 17:31:29

%S 5,6,7,10,19,48,175,864,5837,51800,584259,8124352,135854841,

%T 2676859186,61120545021,1594967614576,47019134572933

%N a(1) = 5, a( n) = prime(a(n-1)) - a(n-1).

%t NestList[Prime[ # ]-#&,5,15]

%Y Cf. A074271 a(1) = 1, a(n) = prime(a(n-1)) + a(n-1).

%K nonn

%O 1,1

%A _Zak Seidov_, Jul 07 2010

%E a(17) from _Robert G. Wilson v_, Jul 12 2010