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.

A172131 Partial sums of floor(n^2/9) (A056838).

Table of values

n a(n)
0 0
1 0
2 0
3 1
4 2
5 4
6 8
7 13
8 20
9 29
10 40
11 53
12 69
13 87
14 108
15 133
16 161
17 193
18 229
19 269
20 313
21 362
22 415
23 473
24 537
25 606
26 681
27 762
28 849
29 942
30 1042
31 1148
32 1261
33 1382
34 1510
35 1646
36 1790
37 1942
38 2102
39 2271
40 2448
41 2634
42 2830
43 3035
44 3250
45 3475
46 3710
47 3955
48 4211
49 4477
50 4754

List of values

[0, 0, 0, 1, 2, 4, 8, 13, 20, 29, 40, 53, 69, 87, 108, 133, 161, 193, 229, 269, 313, 362, 415, 473, 537, 606, 681, 762, 849, 942, 1042, 1148, 1261, 1382, 1510, 1646, 1790, 1942, 2102, 2271, 2448, 2634, 2830, 3035, 3250, 3475, 3710, 3955, 4211, 4477, 4754]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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