%I #23 Jan 19 2023 13:22:40
%S 0,0,0,3,7,-23,-73,-57,186,2126,3161,3885,12731,39462,-13815,-151907,
%T 1117163,5045162,-19274680,18700047,127912738,252060543,-656184524,
%U 2799754423,5292148929,27646015077,49454963317,271968742992
%N Difference between pi(10^n) and A226945(n), where pi(x) is the number of primes <= x.
%H Eduard Roure Perdices, <a href="/A228724/b228724.txt">Table of n, a(n) for n = 1..29</a> (terms n = 1..24 from Arkadiusz Wesolowski; terms n = 25,26 from David Baugh).
%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Prime_number_theorem">Prime number theorem</a>
%F a(n) = A006880(n) - A226945(n).
%Y Cf. A006880, A226945, A057794.
%K sign
%O 1,4
%A _Arkadiusz Wesolowski_, Aug 31 2013
%E a(25)-a(26) added by _David Baugh_, Mar 17 2015
%E a(27)-a(28) added using A006880 and A226945, by _Eduard Roure Perdices_, Apr 16 2021