A291974 - cp's OEIS frontend

A291974 a(n) = (3n)! [z^(3n)] exp(-(exp(z)/3 + 2exp(-z/2)cos(zsqrt(3)/2)/3 - 1)).

n	a(n)
0	1
1	-1
2	9
3	-197
4	6841
5	-254801
6	-3000807
7	3691567683
8	-717149457463
9	-3166484321001
10	70729161470807849
11	-27375562310313650357
12	-6307300288015827588199
13	14726712291264935798753279
14	-4956785715421801286491780487
15	-9984523503726123391084330853037

[1, -1, 9, -197, 6841, -254801, -3000807, 3691567683, -717149457463, -3166484321001, 70729161470807849, -27375562310313650357, -6307300288015827588199, 14726712291264935798753279, -4956785715421801286491780487, -9984523503726123391084330853037]

cp's OEIS Frontend

A291974 a(n) = (3n)! [z^(3n)] exp(-(exp(z)/3 + 2exp(-z/2)cos(zsqrt(3)/2)/3 - 1)).

Table of values

List of values

cp's OEIS Frontend

A291974 a(n) = (3*n)! * [z^(3*n)] exp(-(exp(z)/3 + 2*exp(-z/2)*cos(z*sqrt(3)/2)/3 - 1)).

Table of values

List of values

A291974 a(n) = (3n)! [z^(3n)] exp(-(exp(z)/3 + 2exp(-z/2)cos(zsqrt(3)/2)/3 - 1)).