This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A092336 #22 Jun 17 2021 17:01:50 %S A092336 6,34,530,8658,33558994,8623428050,146062119378,2305843154202071506, %T A092336 2658455991569831746960535770155913682, %U A092336 191561942608236109953249369654135385091533091704082898 %N A092336 Sum of first n perfect numbers. %t A092336 Accumulate[PerfectNumber[Range[10]]] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Jun 17 2021 *) %Y A092336 Cf. A000396. %K A092336 nonn %O A092336 1,1 %A A092336 Jun Mizuki (suzuki32(AT)sanken.osaka-u.ac.jp), Mar 18 2004 %E A092336 More terms from _R. J. Mathar_, Jan 21 2009