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.

A130423 Main diagonal of array A[k,n] = n-th sum of 3 consecutive k-gonal numbers, k>2.

Table of values

n a(n)
1 4
2 14
3 39
4 88
5 170
6 294
7 469
8 704
9 1008
10 1390
11 1859
12 2424
13 3094
14 3878
15 4785
16 5824
17 7004
18 8334
19 9823
20 11480
21 13314
22 15334
23 17549
24 19968
25 22600
26 25454
27 28539
28 31864
29 35438
30 39270
31 43369
32 47744
33 52404
34 57358
35 62615
36 68184
37 74074
38 80294
39 86853

List of values

[4, 14, 39, 88, 170, 294, 469, 704, 1008, 1390, 1859, 2424, 3094, 3878, 4785, 5824, 7004, 8334, 9823, 11480, 13314, 15334, 17549, 19968, 22600, 25454, 28539, 31864, 35438, 39270, 43369, 47744, 52404, 57358, 62615, 68184, 74074, 80294, 86853]