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.

A182728 Array T(n,k) = n*k*A000041(n) read by antidiagonals, n,k >= 1.

Table of values

n a(n)
1 1
2 4
3 2
4 9
5 8
6 3
7 20
8 18
9 12
10 4
11 35
12 40
13 27
14 16
15 5
16 66
17 70
18 60
19 36
20 20
21 6
22 105
23 132
24 105
25 80
26 45
27 24
28 7
29 176
30 210
31 198
32 140
33 100
34 54
35 28
36 8
37 270
38 352
39 315
40 264
41 175
42 120
43 63
44 32
45 9
46 420
47 540
48 528
49 420
50 330
51 210
52 140
53 72
54 36
55 10
56 616
57 840
58 810
59 704
60 525
61 396
62 245
63 160
64 81
65 40
66 11

List of values

[1, 4, 2, 9, 8, 3, 20, 18, 12, 4, 35, 40, 27, 16, 5, 66, 70, 60, 36, 20, 6, 105, 132, 105, 80, 45, 24, 7, 176, 210, 198, 140, 100, 54, 28, 8, 270, 352, 315, 264, 175, 120, 63, 32, 9, 420, 540, 528, 420, 330, 210, 140, 72, 36, 10, 616, 840, 810, 704, 525, 396, 245, 160, 81, 40, 11]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement.