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.

A194587 A triangle whose rows add up to the numerators of the Bernoulli numbers (with B(1) = 1/2). T(n, k) for n >= 0, 0 <= k <= n.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 -3
5 4
6 0
7 1
8 -4
9 3
10 0
11 -15
12 140
13 -270
14 144
15 0
16 1
17 -20
18 75
19 -96
20 40
21 0
22 -21
23 868
24 -5670
25 13104
26 -12600
27 4320
28 0
29 1
30 -84
31 903
32 -3360
33 5600
34 -4320
35 1260
36 0
37 -15
38 2540
39 -43470
40 244944
41 -630000
42 820800
43 -529200
44 134400
45 0
46 1
47 -340
48 9075
49 -74592
50 278040
51 -544320
52 582120
53 -322560
54 72576

List of values

[1, 0, 1, 0, -3, 4, 0, 1, -4, 3, 0, -15, 140, -270, 144, 0, 1, -20, 75, -96, 40, 0, -21, 868, -5670, 13104, -12600, 4320, 0, 1, -84, 903, -3360, 5600, -4320, 1260, 0, -15, 2540, -43470, 244944, -630000, 820800, -529200, 134400, 0, 1, -340, 9075, -74592, 278040, -544320, 582120, -322560, 72576]