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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.

A118057 a(n) = 8*n^2 - 4*n - 3.

Table of values

n a(n)
1 1
2 21
3 57
4 109
5 177
6 261
7 361
8 477
9 609
10 757
11 921
12 1101
13 1297
14 1509
15 1737
16 1981
17 2241
18 2517
19 2809
20 3117
21 3441
22 3781
23 4137
24 4509
25 4897
26 5301
27 5721
28 6157
29 6609
30 7077
31 7561
32 8061
33 8577
34 9109
35 9657
36 10221
37 10801
38 11397
39 12009
40 12637
41 13281
42 13941
43 14617

List of values

[1, 21, 57, 109, 177, 261, 361, 477, 609, 757, 921, 1101, 1297, 1509, 1737, 1981, 2241, 2517, 2809, 3117, 3441, 3781, 4137, 4509, 4897, 5301, 5721, 6157, 6609, 7077, 7561, 8061, 8577, 9109, 9657, 10221, 10801, 11397, 12009, 12637, 13281, 13941, 14617]

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

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