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.

A180049 Coefficient triangle of the numerators of the (n-th convergents to) the continued fraction 1/(w+2/(w+3/(w+4/... .

Table of values

n a(n)
1 1
2 0
3 1
4 3
5 0
6 1
7 0
8 7
9 0
10 1
11 15
12 0
13 12
14 0
15 1
16 0
17 57
18 0
19 18
20 0
21 1
22 105
23 0
24 141
25 0
26 25
27 0
28 1
29 0
30 561
31 0
32 285
33 0
34 33
35 0
36 1
37 945
38 0
39 1830
40 0
41 510
42 0
43 42
44 0
45 1
46 0
47 6555
48 0
49 4680
50 0
51 840
52 0
53 52
54 0
55 1
56 10395
57 0
58 26685
59 0
60 10290
61 0
62 1302
63 0
64 63
65 0
66 1
67 0
68 89055
69 0
70 82845
71 0
72 20370
73 0
74 1926
75 0
76 75
77 0
78 1

List of values

[1, 0, 1, 3, 0, 1, 0, 7, 0, 1, 15, 0, 12, 0, 1, 0, 57, 0, 18, 0, 1, 105, 0, 141, 0, 25, 0, 1, 0, 561, 0, 285, 0, 33, 0, 1, 945, 0, 1830, 0, 510, 0, 42, 0, 1, 0, 6555, 0, 4680, 0, 840, 0, 52, 0, 1, 10395, 0, 26685, 0, 10290, 0, 1302, 0, 63, 0, 1, 0, 89055, 0, 82845, 0, 20370, 0, 1926, 0, 75, 0, 1]