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.

A164015 5 times centered pentagonal numbers: 5*(5*n^2 + 5*n + 2)/2.

Table of values

n a(n)
0 5
1 30
2 80
3 155
4 255
5 380
6 530
7 705
8 905
9 1130
10 1380
11 1655
12 1955
13 2280
14 2630
15 3005
16 3405
17 3830
18 4280
19 4755
20 5255
21 5780
22 6330
23 6905
24 7505
25 8130
26 8780
27 9455
28 10155
29 10880
30 11630
31 12405
32 13205
33 14030
34 14880
35 15755
36 16655
37 17580
38 18530

List of values

[5, 30, 80, 155, 255, 380, 530, 705, 905, 1130, 1380, 1655, 1955, 2280, 2630, 3005, 3405, 3830, 4280, 4755, 5255, 5780, 6330, 6905, 7505, 8130, 8780, 9455, 10155, 10880, 11630, 12405, 13205, 14030, 14880, 15755, 16655, 17580, 18530]