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.

A210231 Triangle of coefficients of polynomials u(n,x) jointly generated with A210232; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 1
4 3
5 4
6 1
7 4
8 8
9 7
10 1
11 5
12 14
13 18
14 11
15 1
16 6
17 21
18 39
19 36
20 16
21 1
22 7
23 30
24 69
25 93
26 66
27 22
28 1
29 8
30 40
31 114
32 192
33 199
34 113
35 29
36 1
37 9
38 52
39 172
40 360
41 474
42 393
43 183
44 37
45 1
46 10
47 65
48 250
49 610
50 997
51 1068
52 729
53 283
54 46
55 1
56 11
57 80
58 345
59 980
60 1882
61 2501
62 2238
63 1285
64 421

List of values

[1, 2, 1, 3, 4, 1, 4, 8, 7, 1, 5, 14, 18, 11, 1, 6, 21, 39, 36, 16, 1, 7, 30, 69, 93, 66, 22, 1, 8, 40, 114, 192, 199, 113, 29, 1, 9, 52, 172, 360, 474, 393, 183, 37, 1, 10, 65, 250, 610, 997, 1068, 729, 283, 46, 1, 11, 80, 345, 980, 1882, 2501, 2238, 1285, 421]