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.

A256649 29-gonal pyramidal numbers: a(n) = n*(n+1)*(9*n-8)/2.

Table of values

n a(n)
0 0
1 1
2 30
3 114
4 280
5 555
6 966
7 1540
8 2304
9 3285
10 4510
11 6006
12 7800
13 9919
14 12390
15 15240
16 18496
17 22185
18 26334
19 30970
20 36120
21 41811
22 48070
23 54924
24 62400
25 70525
26 79326
27 88830
28 99064
29 110055
30 121830
31 134416
32 147840
33 162129
34 177310
35 193410
36 210456
37 228475
38 247494

List of values

[0, 1, 30, 114, 280, 555, 966, 1540, 2304, 3285, 4510, 6006, 7800, 9919, 12390, 15240, 18496, 22185, 26334, 30970, 36120, 41811, 48070, 54924, 62400, 70525, 79326, 88830, 99064, 110055, 121830, 134416, 147840, 162129, 177310, 193410, 210456, 228475, 247494]