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.

A137387 Triangular sequence from coefficients of the expansion of p(x,t)=Exp[2*x*t]*t/(1 - t).

Table of values

n a(n)
1 0
2 1
3 2
4 4
5 6
6 12
7 12
8 24
9 48
10 48
11 32
12 120
13 240
14 240
15 160
16 80
17 720
18 1440
19 1440
20 960
21 480
22 192
23 5040
24 10080
25 10080
26 6720
27 3360
28 1344
29 448
30 40320
31 80640
32 80640
33 53760
34 26880
35 10752
36 3584
37 1024
38 362880
39 725760
40 725760
41 483840
42 241920
43 96768
44 32256
45 9216

List of values

[0, 1, 2, 4, 6, 12, 12, 24, 48, 48, 32, 120, 240, 240, 160, 80, 720, 1440, 1440, 960, 480, 192, 5040, 10080, 10080, 6720, 3360, 1344, 448, 40320, 80640, 80640, 53760, 26880, 10752, 3584, 1024, 362880, 725760, 725760, 483840, 241920, 96768, 32256, 9216]