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.

A378145 Riordan triangle (1 + x * C(x), x * C(x)), where C(x) is g.f. of A000108.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 2
5 1
6 2
7 4
8 3
9 1
10 5
11 10
12 8
13 4
14 1
15 14
16 28
17 23
18 13
19 5
20 1
21 42
22 84
23 70
24 42
25 19
26 6
27 1
28 132
29 264
30 222
31 138
32 68
33 26
34 7
35 1
36 429
37 858
38 726
39 462
40 240
41 102
42 34
43 8
44 1
45 1430
46 2860
47 2431
48 1573
49 847
50 385
51 145
52 43
53 9
54 1
55 4862
56 9724
57 8294
58 5434
59 3003
60 1430
61 583
62 198
63 53
64 10
65 1

List of values

[1, 1, 1, 1, 2, 1, 2, 4, 3, 1, 5, 10, 8, 4, 1, 14, 28, 23, 13, 5, 1, 42, 84, 70, 42, 19, 6, 1, 132, 264, 222, 138, 68, 26, 7, 1, 429, 858, 726, 462, 240, 102, 34, 8, 1, 1430, 2860, 2431, 1573, 847, 385, 145, 43, 9, 1, 4862, 9724, 8294, 5434, 3003, 1430, 583, 198, 53, 10, 1]