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.

A207631 Triangle of coefficients of polynomials u(n,x) jointly generated with A207632; see the Formula section.

Table of values

n a(n)
1 1
2 2
3 4
4 2
5 7
6 6
7 2
8 12
9 15
10 8
11 2
12 20
13 33
14 25
15 10
16 2
17 33
18 68
19 66
20 37
21 12
22 2
23 54
24 134
25 159
26 113
27 51
28 14
29 2
30 88
31 256
32 359
33 309
34 176
35 67
36 16
37 2
38 143
39 478
40 774
41 781
42 536
43 257
44 85
45 18
46 2
47 232
48 877
49 1611
50 1864
51 1493
52 860
53 358
54 105
55 20
56 2
57 376
58 1587
59 3262
60 4256

List of values

[1, 2, 4, 2, 7, 6, 2, 12, 15, 8, 2, 20, 33, 25, 10, 2, 33, 68, 66, 37, 12, 2, 54, 134, 159, 113, 51, 14, 2, 88, 256, 359, 309, 176, 67, 16, 2, 143, 478, 774, 781, 536, 257, 85, 18, 2, 232, 877, 1611, 1864, 1493, 860, 358, 105, 20, 2, 376, 1587, 3262, 4256]