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.

A280774 Numbers k such that gcd(A280864(k), A280864(k+1)) = 1.

Table of values

n a(n)
1 1
2 3
3 6
4 10
5 13
6 23
7 27
8 30
9 34
10 38
11 48
12 54
13 62
14 65
15 69
16 86
17 90
18 94
19 103
20 120
21 127
22 131
23 135
24 139
25 144
26 148
27 161
28 165
29 185
30 197
31 211
32 255
33 258
34 262
35 275
36 286
37 290
38 300
39 311
40 319
41 330
42 334
43 350
44 354
45 358
46 367
47 375
48 379
49 399
50 414
51 420
52 427
53 443
54 447
55 453
56 457
57 465
58 486
59 500
60 504
61 530
62 534
63 549
64 555
65 559

List of values

[1, 3, 6, 10, 13, 23, 27, 30, 34, 38, 48, 54, 62, 65, 69, 86, 90, 94, 103, 120, 127, 131, 135, 139, 144, 148, 161, 165, 185, 197, 211, 255, 258, 262, 275, 286, 290, 300, 311, 319, 330, 334, 350, 354, 358, 367, 375, 379, 399, 414, 420, 427, 443, 447, 453, 457, 465, 486, 500, 504, 530, 534, 549, 555, 559]

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

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