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.

A208330 Triangle of coefficients of polynomials u(n,x) jointly generated with A208331; see the Formula section.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 2
6 3
7 1
8 3
9 9
10 5
11 1
12 4
13 18
14 20
15 11
16 1
17 5
18 30
19 50
20 55
21 21
22 1
23 6
24 45
25 100
26 165
27 126
28 43
29 1
30 7
31 63
32 175
33 385
34 441
35 301
36 85
37 1
38 8
39 84
40 280
41 770
42 1176
43 1204
44 680
45 171
46 1
47 9
48 108
49 420
50 1386
51 2646
52 3612
53 3060
54 1539
55 341
56 1
57 10
58 135
59 600
60 2310
61 5292
62 9030

List of values

[1, 1, 1, 1, 2, 3, 1, 3, 9, 5, 1, 4, 18, 20, 11, 1, 5, 30, 50, 55, 21, 1, 6, 45, 100, 165, 126, 43, 1, 7, 63, 175, 385, 441, 301, 85, 1, 8, 84, 280, 770, 1176, 1204, 680, 171, 1, 9, 108, 420, 1386, 2646, 3612, 3060, 1539, 341, 1, 10, 135, 600, 2310, 5292, 9030]