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.

A289233 Largest number of disjoint point triples that can be chosen from an n X n X n triangular point grid, each point triple forming a 2 X 2 X 2 triangle.

Table of values

n a(n)
1 0
2 1
3 1
4 3
5 4
6 6
7 9
8 11
9 15
10 18
11 22
12 26
13 30
14 35
15 39
16 45
17 50
18 56
19 63
20 69
21 77
22 84
23 92
24 100
25 108
26 117
27 125
28 135
29 144
30 154
31 165
32 175
33 187
34 198
35 210
36 222
37 234
38 247
39 259
40 273
41 286
42 300
43 315
44 329
45 345
46 360
47 376
48 392
49 408
50 425
51 441
52 459
53 476
54 494
55 513
56 531
57 551
58 570

List of values

[0, 1, 1, 3, 4, 6, 9, 11, 15, 18, 22, 26, 30, 35, 39, 45, 50, 56, 63, 69, 77, 84, 92, 100, 108, 117, 125, 135, 144, 154, 165, 175, 187, 198, 210, 222, 234, 247, 259, 273, 286, 300, 315, 329, 345, 360, 376, 392, 408, 425, 441, 459, 476, 494, 513, 531, 551, 570]

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

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