%I #12 Jun 07 2018 03:53:30

%S -30,6660,-1536120,354476040,-81800478900,18876653594640,

%T -4356063194112240,1005225129672310800,-231970363216834560390,

%U 53530545369975222475800,-12352954264801690636800360,2850624405442199478575792160

%N a(n) = (1/8) * Sum_{d|n} d * A110163(d).

%H Vaclav Kotesovec, <a href="/A300147/b300147.txt">Table of n, a(n) for n = 1..420</a>

%F a(n) ~ (-1)^n * exp(Pi*sqrt(3)*n) / 8. - _Vaclav Kotesovec_, Jun 07 2018

%Y Cf. A004009 (E_4), A108091, A110163, A289247, A300025.

%K sign

%O 1,1

%A _Seiichi Manyama_, Feb 26 2018