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 A320682 #4 Oct 19 2018 10:28:45 %S A320682 0,2,7,32,85,191,383,760,1429,2601,4455,7275,11312,17084,25203,36725, %T A320682 52631,74199,102482,138942,184934,242638,314286,403242,513039,648580, %U A320682 814890,1018701,1266791,1567831,1930440,2365171,2882192,3493959,4212425,5052278,6027955 %N A320682 Number of 7-element subsets of [n] having a prime element sum. %H A320682 Alois P. Heinz, <a href="/A320682/b320682.txt">Table of n, a(n) for n = 7..500</a> %Y A320682 Column k=7 of A282516. %K A320682 nonn %O A320682 7,2 %A A320682 _Alois P. Heinz_, Oct 19 2018