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 A225090 #15 May 02 2014 03:14:25 %S A225090 1,2,3,4,5,5,7,8,9,8,11,8,13,11,15,14,17,14,19,11,13,17,23,13,25,20, %T A225090 27,22,29,23,31,26,33,26,35,18,37,29,23,22,41,17,43,34,45,35,47,24,49, %U A225090 38,51,25,53,30,23,20,33,44,59,19,61,47,39,44,65,50,67,32 %N A225090 Minimal sum of entries of the character table of a group of order n. %C A225090 The maximal sum of entries is just n, and this is achieved by any Abelian group of order n. %C A225090 A060653(n) <= a(n) <= n. %H A225090 Eric M. Schmidt, <a href="/A225090/b225090.txt">Table of n, a(n) for n = 1..1023</a> %H A225090 Louis Solomon, <a href="http://dx.doi.org/10.1090/S0002-9939-1961-0132783-8">On the Sum of the Elements in the Character Table of a Finite Group</a>. Proceedings of the American Mathematical Society, Vol. 12, No. 6 (Dec., 1961), pp. 962-963. %e A225090 a(6)=5 because the sum of the entries in the character table of the symmetric group S3 is 5, the minimum for groups of order 6. %o A225090 (GAP) A225090 := function(n) local min, i; min := n; for i in [1..NumberSmallGroups(n)] do min := Minimum(min, Sum(Sum(Irr(SmallGroup(n, i))))); od; return min; end; %Y A225090 Cf. A061064, A082733, A085624, A086808. %K A225090 nonn %O A225090 1,2 %A A225090 _Eric M. Schmidt_, Apr 27 2013