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.

A049450 Pentagonal numbers multiplied by 2: a(n) = n*(3*n-1).

Table of values

n a(n)
0 0
1 2
2 10
3 24
4 44
5 70
6 102
7 140
8 184
9 234
10 290
11 352
12 420
13 494
14 574
15 660
16 752
17 850
18 954
19 1064
20 1180
21 1302
22 1430
23 1564
24 1704
25 1850
26 2002
27 2160
28 2324
29 2494
30 2670
31 2852
32 3040
33 3234
34 3434
35 3640
36 3852
37 4070
38 4294
39 4524
40 4760
41 5002
42 5250
43 5504
44 5764

List of values

[0, 2, 10, 24, 44, 70, 102, 140, 184, 234, 290, 352, 420, 494, 574, 660, 752, 850, 954, 1064, 1180, 1302, 1430, 1564, 1704, 1850, 2002, 2160, 2324, 2494, 2670, 2852, 3040, 3234, 3434, 3640, 3852, 4070, 4294, 4524, 4760, 5002, 5250, 5504, 5764]

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

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