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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.

A004782 Numbers k such that 2*(2k-3)!/(k!*(k-1)!) is an integer.

Table of values

n a(n)
1 2
2 3
3 7
4 16
5 21
6 29
7 43
8 46
9 67
10 78
11 89
12 92
13 105
14 111
15 127
16 141
17 154
18 157
19 171
20 188
21 191
22 205
23 210
24 211
25 221
26 229
27 232
28 239
29 241
30 267
31 277
32 300
33 309
34 313
35 316
36 323
37 326
38 331
39 346
40 369
41 379
42 415
43 421
44 430
45 436
46 441
47 443
48 451
49 460
50 461
51 465
52 469
53 477

List of values

[2, 3, 7, 16, 21, 29, 43, 46, 67, 78, 89, 92, 105, 111, 127, 141, 154, 157, 171, 188, 191, 205, 210, 211, 221, 229, 232, 239, 241, 267, 277, 300, 309, 313, 316, 323, 326, 331, 346, 369, 379, 415, 421, 430, 436, 441, 443, 451, 460, 461, 465, 469, 477]

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

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