A320255 - cp's OEIS frontend

A320255 a(n) = n! * [x^n] log(1 + exp(x)(x + (n/2 - 1)x^2)).

n	a(n)
0	0
1	1
2	1
3	-1
4	-26
5	39
6	3666
7	-7400
8	-1488416
9	3802113
10	1322570530
11	-4095154284
12	-2187371499312
13	7964242253473
14	6052757424558586
15	-25343867475914910
16	-25988018018090461664
17	123032891453320498449
18	163684285184147641156098
19	-864557405968781387651984
20	-1448111703094244548802632160

[0, 1, 1, -1, -26, 39, 3666, -7400, -1488416, 3802113, 1322570530, -4095154284, -2187371499312, 7964242253473, 6052757424558586, -25343867475914910, -25988018018090461664, 123032891453320498449, 163684285184147641156098, -864557405968781387651984, -1448111703094244548802632160]

cp's OEIS Frontend

A320255 a(n) = n! * [x^n] log(1 + exp(x)(x + (n/2 - 1)x^2)).

Table of values

List of values

cp's OEIS Frontend

A320255 a(n) = n! * [x^n] log(1 + exp(x)*(x + (n/2 - 1)*x^2)).

Table of values

List of values

A320255 a(n) = n! * [x^n] log(1 + exp(x)(x + (n/2 - 1)x^2)).