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.

A275586 Numbers k that appear more than once in c_{m,n} for integers m >= n >= 1 where c_{m,n} = ((m+n)!(m-n+1))/((n)!(m+1)!).

Table of values

n a(n)
1 1
2 2
3 5
4 9
5 14
6 20
7 27
8 28
9 35
10 42
11 44
12 48
13 54
14 65
15 75
16 77
17 90
18 104
19 110
20 119
21 132
22 135
23 152
24 154
25 165
26 170
27 189
28 208
29 209
30 230
31 252
32 273
33 275
34 297
35 299
36 324
37 350
38 377
39 405
40 429
41 434
42 440
43 464
44 495
45 527
46 544
47 560
48 572
49 594
50 629
51 637
52 663
53 665
54 702
55 740
56 779
57 798
58 819
59 860
60 902
61 910
62 945
63 950
64 989

List of values

[1, 2, 5, 9, 14, 20, 27, 28, 35, 42, 44, 48, 54, 65, 75, 77, 90, 104, 110, 119, 132, 135, 152, 154, 165, 170, 189, 208, 209, 230, 252, 273, 275, 297, 299, 324, 350, 377, 405, 429, 434, 440, 464, 495, 527, 544, 560, 572, 594, 629, 637, 663, 665, 702, 740, 779, 798, 819, 860, 902, 910, 945, 950, 989]