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 A174118 #2 Mar 30 2012 18:40:51 %S A174118 1,2,3,6,16,60,298,1948,16460,179801,2540520,46485494,1101504593, %T A174118 33766488831,1336910042036,68237302714204,4481677081035893 %N A174118 Partial sums of A000608. %C A174118 Partial sums of number of connected partially ordered sets with n unlabeled elements. The subsequence of primes in this partial sum begins: 2, 3, 179801. Partial sum of Inverse Euler transform of A000112. %Y A174118 Cf. A000608, A000112. %K A174118 hard,nonn %O A174118 1,2 %A A174118 _Jonathan Vos Post_, Mar 08 2010