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.

A208101 Triangle read by rows: T(n,0) = 1; for n > 0: T(n,1) = n, for n>1: T(n,n) = T(n-1,n-2); T(n,k) = T(n-2,k-1) + T(n-1,k) for k: 1 < k < n.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 1
6 1
7 3
8 2
9 2
10 1
11 4
12 3
13 5
14 2
15 1
16 5
17 4
18 9
19 5
20 5
21 1
22 6
23 5
24 14
25 9
26 14
27 5
28 1
29 7
30 6
31 20
32 14
33 28
34 14
35 14
36 1
37 8
38 7
39 27
40 20
41 48
42 28
43 42
44 14
45 1
46 9
47 8
48 35
49 27
50 75
51 48
52 90
53 42
54 42
55 1
56 10
57 9
58 44
59 35
60 110
61 75
62 165
63 90
64 132
65 42
66 1
67 11
68 10
69 54
70 44
71 154
72 110

List of values

[1, 1, 1, 1, 2, 1, 1, 3, 2, 2, 1, 4, 3, 5, 2, 1, 5, 4, 9, 5, 5, 1, 6, 5, 14, 9, 14, 5, 1, 7, 6, 20, 14, 28, 14, 14, 1, 8, 7, 27, 20, 48, 28, 42, 14, 1, 9, 8, 35, 27, 75, 48, 90, 42, 42, 1, 10, 9, 44, 35, 110, 75, 165, 90, 132, 42, 1, 11, 10, 54, 44, 154, 110]