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.

A174114 Even central polygonal numbers (A193868) divided by 2.

Table of values

n a(n)
1 1
2 2
3 8
4 11
5 23
6 28
7 46
8 53
9 77
10 86
11 116
12 127
13 163
14 176
15 218
16 233
17 281
18 298
19 352
20 371
21 431
22 452
23 518
24 541
25 613
26 638
27 716
28 743
29 827
30 856
31 946
32 977
33 1073
34 1106
35 1208
36 1243
37 1351
38 1388
39 1502
40 1541
41 1661
42 1702
43 1828
44 1871
45 2003
46 2048
47 2186
48 2233
49 2377
50 2426
51 2576

List of values

[1, 2, 8, 11, 23, 28, 46, 53, 77, 86, 116, 127, 163, 176, 218, 233, 281, 298, 352, 371, 431, 452, 518, 541, 613, 638, 716, 743, 827, 856, 946, 977, 1073, 1106, 1208, 1243, 1351, 1388, 1502, 1541, 1661, 1702, 1828, 1871, 2003, 2048, 2186, 2233, 2377, 2426, 2576]

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

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