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.

A239355 Number of unit hypercubes, aligned with a four-dimensional Cartesian mesh, partially enclosed along the edge of the first 2^4-ant of a hypersphere centered at the origin, ordered by increasing radius.

Table of values

n a(n)
1 0
2 1
3 1
4 5
5 5
6 11
7 11
8 15
9 14
10 19
11 19
12 31
13 31
14 43
15 39
16 43
17 43
18 49
19 49
20 65
21 59
22 77
23 77
24 89
25 85
26 93
27 89
28 105
29 105
30 129
31 117
32 129
33 128
34 133
35 133
36 157
37 145
38 175
39 171
40 187
41 181
42 199
43 195
44 223
45 211
46 235
47 223
48 235
49 235
50 247
51 235
52 263
53 257
54 299
55 287
56 315
57 303
58 315

List of values

[0, 1, 1, 5, 5, 11, 11, 15, 14, 19, 19, 31, 31, 43, 39, 43, 43, 49, 49, 65, 59, 77, 77, 89, 85, 93, 89, 105, 105, 129, 117, 129, 128, 133, 133, 157, 145, 175, 171, 187, 181, 199, 195, 223, 211, 235, 223, 235, 235, 247, 235, 263, 257, 299, 287, 315, 303, 315]