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.

A152759 3 times 9-gonal (or nonagonal) numbers: a(n) = 3*n*(7*n-5)/2.

Table of values

n a(n)
0 0
1 3
2 27
3 72
4 138
5 225
6 333
7 462
8 612
9 783
10 975
11 1188
12 1422
13 1677
14 1953
15 2250
16 2568
17 2907
18 3267
19 3648
20 4050
21 4473
22 4917
23 5382
24 5868
25 6375
26 6903
27 7452
28 8022
29 8613
30 9225
31 9858
32 10512
33 11187
34 11883
35 12600
36 13338
37 14097
38 14877
39 15678
40 16500
41 17343
42 18207
43 19092
44 19998

List of values

[0, 3, 27, 72, 138, 225, 333, 462, 612, 783, 975, 1188, 1422, 1677, 1953, 2250, 2568, 2907, 3267, 3648, 4050, 4473, 4917, 5382, 5868, 6375, 6903, 7452, 8022, 8613, 9225, 9858, 10512, 11187, 11883, 12600, 13338, 14097, 14877, 15678, 16500, 17343, 18207, 19092, 19998]