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.

A127990 Largest prime factor of 2*n^3 - 2*n + 9.

Table of values

n a(n)
1 3
2 7
3 19
4 43
5 83
6 13
7 227
8 113
9 23
10 17
11 883
12 37
13 1459
14 1823
15 2243
16 389
17 11
18 431
19 13
20 5323
21 6163
22 373
23 89
24 9203
25 103
26 83
27 257
28 443
29 439
30 367
31 19843
32 73
33 647
34 26183
35 9521
36 797
37 1607
38 36559
39 3593
40 42643
41 2417
42 49367
43 1709
44 53
45 173
46 7207
47 1609
48 73699
49 163
50 7573

List of values

[3, 7, 19, 43, 83, 13, 227, 113, 23, 17, 883, 37, 1459, 1823, 2243, 389, 11, 431, 13, 5323, 6163, 373, 89, 9203, 103, 83, 257, 443, 439, 367, 19843, 73, 647, 26183, 9521, 797, 1607, 36559, 3593, 42643, 2417, 49367, 1709, 53, 173, 7207, 1609, 73699, 163, 7573]

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

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