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 A134229 #18 Sep 25 2024 01:51:27
%S A134229 45,5975,724952,78848811,8290599189,857088171080,87727442181950,
%T A134229 8924793000002668,904326399306717962,91382247906379573443,
%U A134229 9216035852504141985766,928095944723211397518108,93359489289526851301833406,9383123076016179512328557690
%N A134229 Sum of the odd composites A071904 less than or equal to 1+2*10^n.
%C A134229 A134228(n) + a(n) = A134230(n).
%F A134229 a(n) = sum{A071904(i): A071904(i) <= 1+2*10^n}. - _R. J. Mathar_, Oct 28 2007
%e A134229 a(1)=45 because that is the sum of the odd composites (9+15+21=45) less than or equal to 21.
%Y A134229 Cf. A134228, A134230.
%K A134229 nonn
%O A134229 1,1
%A A134229 _Enoch Haga_, Oct 14 2007
%E A134229 Better definition from _R. J. Mathar_, Oct 28 2007
%E A134229 a(9)-a(14) from _Hiroaki Yamanouchi_, Jul 06 2014