cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A277480 E.g.f.: -tanh(x)*LambertW(-x).

Table of values

n a(n)
0 0
1 0
2 2
3 6
4 28
5 280
6 3486
7 50624
8 877080
9 17677440
10 404537050
11 10360548352
12 293676213876
13 9126971869184
14 308568877413174
15 11274243944693760
16 442681525701106096
17 18588860836606935040
18 831243363178769061426
19 39436124829328468606976
20 1978382154057910059275340

List of values

[0, 0, 2, 6, 28, 280, 3486, 50624, 877080, 17677440, 404537050, 10360548352, 293676213876, 9126971869184, 308568877413174, 11274243944693760, 442681525701106096, 18588860836606935040, 831243363178769061426, 39436124829328468606976, 1978382154057910059275340]