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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.

A175287 Partial sums of ceiling(n^2/4).

Table of values

n a(n)
0 0
1 1
2 2
3 5
4 9
5 16
6 25
7 38
8 54
9 75
10 100
11 131
12 167
13 210
14 259
15 316
16 380
17 453
18 534
19 625
20 725
21 836
22 957
23 1090
24 1234
25 1391
26 1560
27 1743
28 1939
29 2150
30 2375
31 2616
32 2872
33 3145
34 3434
35 3741
36 4065
37 4408
38 4769
39 5150
40 5550
41 5971
42 6412
43 6875
44 7359
45 7866
46 8395
47 8948
48 9524
49 10125
50 10750

List of values

[0, 1, 2, 5, 9, 16, 25, 38, 54, 75, 100, 131, 167, 210, 259, 316, 380, 453, 534, 625, 725, 836, 957, 1090, 1234, 1391, 1560, 1743, 1939, 2150, 2375, 2616, 2872, 3145, 3434, 3741, 4065, 4408, 4769, 5150, 5550, 5971, 6412, 6875, 7359, 7866, 8395, 8948, 9524, 10125, 10750]

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

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