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.

A204008 Symmetric matrix based on f(i,j) = max{3i+j-3,i+3j-3}, by antidiagonals.

Table of values

n a(n)
1 1
2 4
3 4
4 7
5 5
6 7
7 10
8 8
9 8
10 10
11 13
12 11
13 9
14 11
15 13
16 16
17 14
18 12
19 12
20 14
21 16
22 19
23 17
24 15
25 13
26 15
27 17
28 19
29 22
30 20
31 18
32 16
33 16
34 18
35 20
36 22
37 25
38 23
39 21
40 19
41 17
42 19
43 21
44 23
45 25
46 28
47 26
48 24
49 22
50 20
51 20
52 22
53 24
54 26
55 28
56 31
57 29
58 27
59 25
60 23
61 21
62 23
63 25
64 27
65 29
66 31
67 34
68 32
69 30

List of values

[1, 4, 4, 7, 5, 7, 10, 8, 8, 10, 13, 11, 9, 11, 13, 16, 14, 12, 12, 14, 16, 19, 17, 15, 13, 15, 17, 19, 22, 20, 18, 16, 16, 18, 20, 22, 25, 23, 21, 19, 17, 19, 21, 23, 25, 28, 26, 24, 22, 20, 20, 22, 24, 26, 28, 31, 29, 27, 25, 23, 21, 23, 25, 27, 29, 31, 34, 32, 30]

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

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