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.

A102662 Triangle read by rows: T(1,1)=1,T(2,1)=1,T(2,2)=3, T(k-1,r-1)+T(k-1,r)+T(k-2,r-1).

Table of values

n a(n)
1 1
2 1
3 3
4 1
5 5
6 3
7 1
8 7
9 11
10 3
11 1
12 9
13 23
14 17
15 3
16 1
17 11
18 39
19 51
20 23
21 3
22 1
23 13
24 59
25 113
26 91
27 29
28 3
29 1
30 15
31 83
32 211
33 255
34 143
35 35
36 3
37 1
38 17
39 111
40 353
41 579
42 489
43 207
44 41
45 3
46 1
47 19
48 143
49 547
50 1143
51 1323
52 839
53 283
54 47
55 3
56 1
57 21
58 179
59 801
60 2043
61 3045
62 2651
63 1329
64 371
65 53
66 3
67 1
68 23
69 219

List of values

[1, 1, 3, 1, 5, 3, 1, 7, 11, 3, 1, 9, 23, 17, 3, 1, 11, 39, 51, 23, 3, 1, 13, 59, 113, 91, 29, 3, 1, 15, 83, 211, 255, 143, 35, 3, 1, 17, 111, 353, 579, 489, 207, 41, 3, 1, 19, 143, 547, 1143, 1323, 839, 283, 47, 3, 1, 21, 179, 801, 2043, 3045, 2651, 1329, 371, 53, 3, 1, 23, 219]