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.

A130218 Partial sums of A100119. Sum of first n of the n-th centered n-gonal numbers.

Table of values

n a(n)
1 1
2 3
3 10
4 29
5 70
6 146
7 273
8 470
9 759
10 1165
11 1716
12 2443
13 3380
14 4564
15 6035
16 7836
17 10013
18 12615
19 15694
20 19305
21 23506
22 28358
23 33925
24 40274
25 47475
26 55601
27 64728
28 74935
29 86304
30 98920
31 112871
32 128248
33 145145
34 163659
35 183890
36 205941
37 229918
38 255930

List of values

[1, 3, 10, 29, 70, 146, 273, 470, 759, 1165, 1716, 2443, 3380, 4564, 6035, 7836, 10013, 12615, 15694, 19305, 23506, 28358, 33925, 40274, 47475, 55601, 64728, 74935, 86304, 98920, 112871, 128248, 145145, 163659, 183890, 205941, 229918, 255930]