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.

A338198 Triangle read by rows, T(n,k) = ((k+1)*2^(n-k)-(k-2)*(-1)^(n-k))/3 for 0 <= k <= n.

Table of values

n a(n)
0 1
1 0
2 1
3 2
4 1
5 1
6 2
7 3
8 2
9 1
10 6
11 5
12 4
13 3
14 1
15 10
16 11
17 8
18 5
19 4
20 1
21 22
22 21
23 16
24 11
25 6
26 5
27 1
28 42
29 43
30 32
31 21
32 14
33 7
34 6
35 1
36 86
37 85
38 64
39 43
40 26
41 17
42 8
43 7
44 1
45 170
46 171
47 128
48 85
49 54
50 31
51 20
52 9
53 8
54 1
55 342
56 341
57 256
58 171
59 106
60 65
61 36
62 23
63 10
64 9
65 1
66 682
67 683
68 512
69 341
70 214
71 127
72 76
73 41
74 26
75 11
76 10
77 1

List of values

[1, 0, 1, 2, 1, 1, 2, 3, 2, 1, 6, 5, 4, 3, 1, 10, 11, 8, 5, 4, 1, 22, 21, 16, 11, 6, 5, 1, 42, 43, 32, 21, 14, 7, 6, 1, 86, 85, 64, 43, 26, 17, 8, 7, 1, 170, 171, 128, 85, 54, 31, 20, 9, 8, 1, 342, 341, 256, 171, 106, 65, 36, 23, 10, 9, 1, 682, 683, 512, 341, 214, 127, 76, 41, 26, 11, 10, 1]