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.

A114123 Riordan array (1/(1-x), x*(1+x)^2/(1-x)^2).

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 5
5 1
6 1
7 13
8 9
9 1
10 1
11 25
12 41
13 13
14 1
15 1
16 41
17 129
18 85
19 17
20 1
21 1
22 61
23 321
24 377
25 145
26 21
27 1
28 1
29 85
30 681
31 1289
32 833
33 221
34 25
35 1
36 1
37 113
38 1289
39 3653
40 3649
41 1561
42 313
43 29
44 1
45 1
46 145
47 2241
48 8989
49 13073
50 8361
51 2625
52 421
53 33
54 1
55 1
56 181
57 3649
58 19825
59 40081
60 36365
61 16641
62 4089
63 545
64 37
65 1

List of values

[1, 1, 1, 1, 5, 1, 1, 13, 9, 1, 1, 25, 41, 13, 1, 1, 41, 129, 85, 17, 1, 1, 61, 321, 377, 145, 21, 1, 1, 85, 681, 1289, 833, 221, 25, 1, 1, 113, 1289, 3653, 3649, 1561, 313, 29, 1, 1, 145, 2241, 8989, 13073, 8361, 2625, 421, 33, 1, 1, 181, 3649, 19825, 40081, 36365, 16641, 4089, 545, 37, 1]