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 A086808 #8 Aug 24 2024 20:37:07
%S A086808 1,1,3,8,19,52,140,479,1464,5596,19334,78841,305406,1295435,5527265,
%T A086808 24403208,112338932,517908324,2531226446,12216601247,62626424572,
%U A086808 316570510625,1688123202118,8924364770995,49245542104325,271541015196694,1545740618597036
%N A086808 Sum of the entries in the character table of the alternating group A_n.
%H A086808 Eric M. Schmidt, <a href="/A086808/b086808.txt">Table of n, a(n) for n = 1..36</a>
%o A086808 (GAP) A086808 := n -> Sum(Sum(Irr(CharacterTable("Alternating", n)))); # _Eric M. Schmidt_, Sep 05 2012
%Y A086808 Cf. A082733.
%K A086808 nonn
%O A086808 1,3
%A A086808 Yuval Dekel (dekelyuval(AT)hotmail.com), Sep 15 2003
%E A086808 Added terms a(11)-a(36), _Eric M. Schmidt_, Sep 05 2012.