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.

A211534 Number of ordered triples (w,x,y) with all terms in {1,...,n} and w = 3x + 3y.

Table of values

n a(n)
0 0
1 0
2 0
3 0
4 0
5 0
6 1
7 1
8 1
9 3
10 3
11 3
12 6
13 6
14 6
15 10
16 10
17 10
18 15
19 15
20 15
21 21
22 21
23 21
24 28
25 28
26 28
27 36
28 36
29 36
30 45
31 45
32 45
33 55
34 55
35 55
36 66
37 66
38 66
39 78
40 78
41 78
42 91
43 91
44 91
45 105
46 105
47 105
48 120
49 120
50 120
51 136
52 136
53 136
54 153
55 153
56 153
57 171
58 171
59 171
60 190
61 190
62 190
63 210

List of values

[0, 0, 0, 0, 0, 0, 1, 1, 1, 3, 3, 3, 6, 6, 6, 10, 10, 10, 15, 15, 15, 21, 21, 21, 28, 28, 28, 36, 36, 36, 45, 45, 45, 55, 55, 55, 66, 66, 66, 78, 78, 78, 91, 91, 91, 105, 105, 105, 120, 120, 120, 136, 136, 136, 153, 153, 153, 171, 171, 171, 190, 190, 190, 210]

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

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