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.

A080390 Least x such that gcd(A001405(x+1), A001405(x)) = n.

Table of values

n a(n)
1 1
2 5
3 14
4 27
5 34
6 11
7 62
8 183
9 98
10 39
11 142
12 107
13 220
14 69
15 44
16 495
17 322
18 143
19 436
20 139
21 482
22 637
23 574
24 119
25 674
26 233
27 782
28 55
29 898
30 29
31 1146
32 4063
33 230
34 441
35 174
36 467
37 1516
38 493
39 662
40 239
41 1762
42 377
43 2020
44 175
45 764
46 781
47 2302
48 2543
49 2596
50 949
51 968
52 207
53 3126
54 1241

List of values

[1, 5, 14, 27, 34, 11, 62, 183, 98, 39, 142, 107, 220, 69, 44, 495, 322, 143, 436, 139, 482, 637, 574, 119, 674, 233, 782, 55, 898, 29, 1146, 4063, 230, 441, 174, 467, 1516, 493, 662, 239, 1762, 377, 2020, 175, 764, 781, 2302, 2543, 2596, 949, 968, 207, 3126, 1241]

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

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