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.

A143129 Triangle read by rows, T(n,k) = sum {j=k..n} A000292(j) = A000012 * (A000292 * 0^(n-k)) * A000012, 1<=k<=n.

Table of values

n a(n)
1 1
2 5
3 4
4 15
5 14
6 10
7 35
8 34
9 30
10 20
11 70
12 69
13 65
14 55
15 35
16 126
17 125
18 121
19 111
20 91
21 56
22 210
23 209
24 205
25 195
26 175
27 140
28 84
29 330
30 329
31 325
32 315
33 295
34 260
35 204
36 120
37 495
38 494
39 490
40 480
41 460
42 425
43 369
44 285
45 165
46 715
47 714
48 710
49 700
50 680
51 645
52 589
53 505
54 385
55 220
56 1001
57 1000

List of values

[1, 5, 4, 15, 14, 10, 35, 34, 30, 20, 70, 69, 65, 55, 35, 126, 125, 121, 111, 91, 56, 210, 209, 205, 195, 175, 140, 84, 330, 329, 325, 315, 295, 260, 204, 120, 495, 494, 490, 480, 460, 425, 369, 285, 165, 715, 714, 710, 700, 680, 645, 589, 505, 385, 220, 1001, 1000]