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.

A109221 A number triangle related to the Fibonacci polynomials.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 3
9 1
10 1
11 1
12 5
13 3
14 1
15 1
16 1
17 7
18 5
19 6
20 1
21 1
22 1
23 9
24 7
25 15
26 6
27 1
28 1
29 1
30 11
31 9
32 28
33 15
34 10
35 1
36 1
37 1
38 13
39 11
40 45
41 28
42 35
43 10
44 1
45 1
46 1
47 15
48 13
49 66
50 45
51 84
52 35
53 15
54 1
55 1
56 1
57 17
58 15
59 91
60 66
61 165
62 84
63 70
64 15
65 1
66 1
67 1
68 19
69 17
70 120
71 91
72 286
73 165
74 210
75 70
76 21
77 1
78 1
79 1
80 21
81 19

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 5, 3, 1, 1, 1, 7, 5, 6, 1, 1, 1, 9, 7, 15, 6, 1, 1, 1, 11, 9, 28, 15, 10, 1, 1, 1, 13, 11, 45, 28, 35, 10, 1, 1, 1, 15, 13, 66, 45, 84, 35, 15, 1, 1, 1, 17, 15, 91, 66, 165, 84, 70, 15, 1, 1, 1, 19, 17, 120, 91, 286, 165, 210, 70, 21, 1, 1, 1, 21, 19]