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G.f.: Im((2*i; x)_oo), where (a; q)_oo is the q-Pochhammer symbol, i = sqrt(-1).
4

%I #18 Feb 26 2024 05:55:44

%S -2,-2,-2,6,6,14,22,30,38,54,30,46,30,14,-34,-74,-154,-226,-362,-498,

%T -698,-762,-1058,-1218,-1474,-1634,-1890,-1914,-2074,-2002,-1962,

%U -1570,-1210,-266,606,2190,3454,6030,8382,11926,15334,20190,24758,30990,36678,44134

%N G.f.: Im((2*i; x)_oo), where (a; q)_oo is the q-Pochhammer symbol, i = sqrt(-1).

%H Seiichi Manyama, <a href="/A292140/b292140.txt">Table of n, a(n) for n = 0..10000</a>

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/q-PochhammerSymbol.html">q-Pochhammer Symbol</a>.

%F (2*i; x)_oo is the g.f. for A292135(n) + i*a(n).

%Y Column k=2 of A292160.

%Y Cf. A278400, A292135, A292141.

%K sign

%O 0,1

%A _Seiichi Manyama_, Sep 09 2017