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 A305077 #6 May 24 2018 23:11:08
%S A305077 1,1,2,3,4,5,7,8,8,9,11,13,14,14,16,19,21,23,25,26,26,27,30,32,32,33,
%T A305077 33,35,37,39,43,46,46,46,48,51,52,52,54,57,59,61,63,63,64,65,69,72,73,
%U A305077 74,75,77,80,82,84,86,86,87,90,93,94,95,98,102,103,105,107,108,109,111,115,119,120,121
%N A305077 Partial sums of absolute values of A076191.
%H A305077 Math Overflow, <a href="https://mathoverflow.net/questions/301074/asymptotic-formula-for-absolute-difference-of-number-of-prime-factors-between-co">Asymptotic formula for absolute difference of number of prime factors between consecutive integers</a>
%F A305077 a(n) = Sum_{k=1..n} |A001222(n+1) - A001222(n)|.
%p A305077 L:= map(numtheory:-bigomega, [$1..200]):
%p A305077 ListTools:-PartialSums(map(abs, L[2..-1]-L[1..-2]));
%Y A305077 Cf. A001222, A076191.
%K A305077 nonn
%O A305077 1,3
%A A305077 _Robert Israel_, May 24 2018