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 A342604 #11 Mar 17 2021 13:25:28 %S A342604 2,5,10,17,39,52,69,126,195,224,255,403,649,821,868,921,1216,1826, %T A342604 2496,2851,2924,3003,3501,4836,6776,8291,8909,9016,9125,9916,12583, %U A342604 17168,21963,24882,25925,26076,26233,27537,32213,41901,54431,64567,69915,71459,71656,71855,73754,81782,100850,129704 %N A342604 a(n) = Sum_{j=1..n} A003718(j-1)*prime(j). %H A342604 Robert Israel, <a href="/A342604/b342604.txt">Table of n, a(n) for n = 1..10000</a> %e A342604 a(3) = A003718(0)*prime(1) + A003718(1)*prime(2) + A003718(2)*prime(3) = 1*2 + 1*3 + 1*5 = 10. %p A342604 p:= 1: R:= NULL: %p A342604 for n from 0 to 14 do %p A342604 for k from 0 to n do %p A342604 p:= nextprime(p); %p A342604 R:= R, binomial(n,k)*p %p A342604 od od: %p A342604 ListTools:-PartialSums([R]): %Y A342604 Cf. A003718, A342605, A342606. %K A342604 nonn %O A342604 1,1 %A A342604 _J. M. Bergot_ and _Robert Israel_, Mar 16 2021