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.

A218711 Number of nonnegative solutions to x^2 + y^2 + z^2 < n^2.

Table of values

n a(n)
0 0
1 1
2 8
3 23
4 51
5 90
6 157
7 230
8 341
9 471
10 639
11 835
12 1063
13 1340
14 1671
15 2022
16 2443
17 2893
18 3428
19 4004
20 4653
21 5359
22 6133
23 6977
24 7907
25 8886
26 9991
27 11152
28 12428
29 13724
30 15192
31 16683
32 18358
33 20072
34 21932
35 23880
36 25941
37 28117
38 30397
39 32822
40 35376
41 38013
42 40840
43 43765
44 46880
45 50090
46 53448
47 56911
48 60583
49 64379

List of values

[0, 1, 8, 23, 51, 90, 157, 230, 341, 471, 639, 835, 1063, 1340, 1671, 2022, 2443, 2893, 3428, 4004, 4653, 5359, 6133, 6977, 7907, 8886, 9991, 11152, 12428, 13724, 15192, 16683, 18358, 20072, 21932, 23880, 25941, 28117, 30397, 32822, 35376, 38013, 40840, 43765, 46880, 50090, 53448, 56911, 60583, 64379]