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.

A208523 Triangle of coefficients of polynomials v(n,x) jointly generated with A208522; see the Formula section.

Table of values

n a(n)
1 1
2 1
3 3
4 1
5 3
6 5
7 1
8 3
9 7
10 11
11 1
12 3
13 9
14 19
15 21
16 1
17 3
18 11
19 27
20 43
21 43
22 1
23 3
24 13
25 35
26 69
27 103
28 85
29 1
30 3
31 15
32 43
33 99
34 183
35 231
36 171
37 1
38 3
39 17
40 51
41 133
42 283
43 449
44 523
45 341
46 1
47 3
48 19
49 59
50 171
51 403
52 747
53 1107
54 1155
55 683
56 1
57 3
58 21
59 67
60 213
61 543
62 1133
63 1971
64 2637
65 2543

List of values

[1, 1, 3, 1, 3, 5, 1, 3, 7, 11, 1, 3, 9, 19, 21, 1, 3, 11, 27, 43, 43, 1, 3, 13, 35, 69, 103, 85, 1, 3, 15, 43, 99, 183, 231, 171, 1, 3, 17, 51, 133, 283, 449, 523, 341, 1, 3, 19, 59, 171, 403, 747, 1107, 1155, 683, 1, 3, 21, 67, 213, 543, 1133, 1971, 2637, 2543]