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.

A329515 Array read by upward antidiagonals: row n = coordination sequence for cylinder formed by rolling up a strip of width 2*n+1 hexagons cut from the hexagonal grid by cuts perpendicular to grid lines.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 3
5 2
6 1
7 3
8 6
9 2
10 1
11 3
12 6
13 7
14 2
15 1
16 3
17 6
18 9
19 6
20 2
21 1
22 3
23 6
24 9
25 12
26 6
27 2
28 1
29 3
30 6
31 9
32 12
33 12
34 6
35 2
36 1
37 3
38 6
39 9
40 12
41 15
42 10
43 6
44 2
45 1
46 3
47 6
48 9
49 12
50 15
51 18
52 10
53 6
54 2
55 1
56 3
57 6
58 9
59 12
60 15
61 18
62 17
63 10
64 6
65 2
66 1
67 3
68 6
69 9
70 12
71 15
72 18
73 21
74 14
75 10
76 6
77 2

List of values

[1, 1, 2, 1, 3, 2, 1, 3, 6, 2, 1, 3, 6, 7, 2, 1, 3, 6, 9, 6, 2, 1, 3, 6, 9, 12, 6, 2, 1, 3, 6, 9, 12, 12, 6, 2, 1, 3, 6, 9, 12, 15, 10, 6, 2, 1, 3, 6, 9, 12, 15, 18, 10, 6, 2, 1, 3, 6, 9, 12, 15, 18, 17, 10, 6, 2, 1, 3, 6, 9, 12, 15, 18, 21, 14, 10, 6, 2]