A024299 - cp's OEIS frontend

A024299 a(n) = (2n)! [x^(2n)] log(1 + tanh(x)^2)/2.

n	a(n)
0	0
1	1
2	-14
3	496
4	-34544
5	4055296
6	-724212224
7	183218384896
8	-62380415842304
9	27507260369207296
10	-15250924309151350784
11	10384039093607251050496
12	-8517991922318587187953664
13	8285309769460200661892202496
14	-9429010285390912531529354706944

[0, 1, -14, 496, -34544, 4055296, -724212224, 183218384896, -62380415842304, 27507260369207296, -15250924309151350784, 10384039093607251050496, -8517991922318587187953664, 8285309769460200661892202496, -9429010285390912531529354706944]

cp's OEIS Frontend

A024299 a(n) = (2n)! [x^(2n)] log(1 + tanh(x)^2)/2.

Table of values

List of values

cp's OEIS Frontend

A024299 a(n) = (2*n)! [x^(2*n)] log(1 + tanh(x)^2)/2.

Table of values

List of values

A024299 a(n) = (2n)! [x^(2n)] log(1 + tanh(x)^2)/2.