%I #22 Jun 17 2021 17:01:50
%S 6,34,530,8658,33558994,8623428050,146062119378,2305843154202071506,
%T 2658455991569831746960535770155913682,
%U 191561942608236109953249369654135385091533091704082898
%N Sum of first n perfect numbers.
%t Accumulate[PerfectNumber[Range[10]]] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Jun 17 2021 *)
%Y Cf. A000396.
%K nonn
%O 1,1
%A Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Mar 18 2004
%E More terms from _R. J. Mathar_, Jan 21 2009