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.

A003154 Centered 12-gonal numbers, or centered dodecagonal numbers: numbers of the form 6*k*(k-1) + 1.

Table of values

n a(n)
1 1
2 13
3 37
4 73
5 121
6 181
7 253
8 337
9 433
10 541
11 661
12 793
13 937
14 1093
15 1261
16 1441
17 1633
18 1837
19 2053
20 2281
21 2521
22 2773
23 3037
24 3313
25 3601
26 3901
27 4213
28 4537
29 4873
30 5221
31 5581
32 5953
33 6337
34 6733
35 7141
36 7561
37 7993
38 8437
39 8893
40 9361
41 9841
42 10333
43 10837
44 11353
45 11881
46 12421

List of values

[1, 13, 37, 73, 121, 181, 253, 337, 433, 541, 661, 793, 937, 1093, 1261, 1441, 1633, 1837, 2053, 2281, 2521, 2773, 3037, 3313, 3601, 3901, 4213, 4537, 4873, 5221, 5581, 5953, 6337, 6733, 7141, 7561, 7993, 8437, 8893, 9361, 9841, 10333, 10837, 11353, 11881, 12421]

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

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