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 A350104 #5 Dec 16 2021 10:36:45
%S A350104 1,3,6,11,18,28,40,56,74,96,121,150,181,218,257,300,347,399,453,513,
%T A350104 575,643,715,791,869,955,1044,1137,1234,1337,1442,1555,1670,1791,1916,
%U A350104 2045,2178,2320,2464,2612,2764,2924,3086,3256,3428,3606,3790,3978,4168,4368
%N A350104 a(n) = Sum_{k=0..n} A350102(k).
%o A350104 (SageMath)
%o A350104 def A350104List(len):
%o A350104 L = [1] * len
%o A350104 a, b = 1, 2
%o A350104 for n in (2..len):
%o A350104 a += b
%o A350104 b += sloane.A000005(n - 1)
%o A350104 L[n - 1] = a
%o A350104 return L
%o A350104 print(A350104List(50))
%Y A350104 Cf. A350102, A350103, A350105, A349976.
%K A350104 nonn
%O A350104 0,2
%A A350104 _Peter Luschny_, Dec 16 2021