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.

A210217 Triangle of coefficients of polynomials u(n,x) jointly generated with A210218; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 1
4 2
5 5
6 1
7 2
8 6
9 12
10 1
11 2
12 6
13 19
14 27
15 1
16 2
17 6
18 20
19 57
20 58
21 1
22 2
23 6
24 20
25 67
26 160
27 121
28 1
29 2
30 6
31 20
32 68
33 218
34 424
35 248
36 1
37 2
38 6
39 20
40 68
41 231
42 680
43 1073
44 503
45 1
46 2
47 6
48 20
49 68
50 232
51 775
52 2028
53 2619
54 1014
55 1
56 2
57 6
58 20
59 68
60 232
61 791
62 2543
63 5797
64 6214
65 2037
66 1
67 2

List of values

[1, 2, 1, 2, 5, 1, 2, 6, 12, 1, 2, 6, 19, 27, 1, 2, 6, 20, 57, 58, 1, 2, 6, 20, 67, 160, 121, 1, 2, 6, 20, 68, 218, 424, 248, 1, 2, 6, 20, 68, 231, 680, 1073, 503, 1, 2, 6, 20, 68, 232, 775, 2028, 2619, 1014, 1, 2, 6, 20, 68, 232, 791, 2543, 5797, 6214, 2037, 1, 2]