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.

A210227 Triangle of coefficients of polynomials u(n,x) jointly generated with A210228; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 1
4 2
5 6
6 1
7 2
8 8
9 16
10 1
11 2
12 8
13 32
14 38
15 1
16 2
17 8
18 36
19 112
20 84
21 1
22 2
23 8
24 36
25 156
26 348
27 178
28 1
29 2
30 8
31 36
32 164
33 620
34 988
35 368
36 1
37 2
38 8
39 36
40 164
41 732
42 2244
43 2624
44 750
45 1
46 2
47 8
48 36
49 164
50 748
51 3108
52 7468
53 6632
54 1516
55 1
56 2
57 8
58 36
59 164
60 748
61 3380
62 12348
63 23164

List of values

[1, 2, 1, 2, 6, 1, 2, 8, 16, 1, 2, 8, 32, 38, 1, 2, 8, 36, 112, 84, 1, 2, 8, 36, 156, 348, 178, 1, 2, 8, 36, 164, 620, 988, 368, 1, 2, 8, 36, 164, 732, 2244, 2624, 750, 1, 2, 8, 36, 164, 748, 3108, 7468, 6632, 1516, 1, 2, 8, 36, 164, 748, 3380, 12348, 23164]