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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.

A173645 Partial sums of floor(n^2/11).

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 1
5 3
6 6
7 10
8 15
9 22
10 31
11 42
12 55
13 70
14 87
15 107
16 130
17 156
18 185
19 217
20 253
21 293
22 337
23 385
24 437
25 493
26 554
27 620
28 691
29 767
30 848
31 935
32 1028
33 1127
34 1232
35 1343
36 1460
37 1584
38 1715
39 1853
40 1998
41 2150
42 2310
43 2478
44 2654
45 2838
46 3030
47 3230
48 3439
49 3657
50 3884

List of values

[0, 0, 0, 0, 1, 3, 6, 10, 15, 22, 31, 42, 55, 70, 87, 107, 130, 156, 185, 217, 253, 293, 337, 385, 437, 493, 554, 620, 691, 767, 848, 935, 1028, 1127, 1232, 1343, 1460, 1584, 1715, 1853, 1998, 2150, 2310, 2478, 2654, 2838, 3030, 3230, 3439, 3657, 3884]

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

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