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.

A349841 Triangle T(n,k) built by placing all ones on the left edge, [1,0,0,0,0] repeated on the right edge, and filling the body using the Pascal recurrence T(n,k) = T(n-1,k) + T(n-1,k-1).

Table of values

n a(n)
0 1
1 1
2 0
3 1
4 1
5 0
6 1
7 2
8 1
9 0
10 1
11 3
12 3
13 1
14 0
15 1
16 4
17 6
18 4
19 1
20 1
21 1
22 5
23 10
24 10
25 5
26 2
27 0
28 1
29 6
30 15
31 20
32 15
33 7
34 2
35 0
36 1
37 7
38 21
39 35
40 35
41 22
42 9
43 2
44 0
45 1
46 8
47 28
48 56
49 70
50 57
51 31
52 11
53 2
54 0
55 1
56 9
57 36
58 84
59 126
60 127
61 88
62 42
63 13
64 2
65 1

List of values

[1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 3, 3, 1, 0, 1, 4, 6, 4, 1, 1, 1, 5, 10, 10, 5, 2, 0, 1, 6, 15, 20, 15, 7, 2, 0, 1, 7, 21, 35, 35, 22, 9, 2, 0, 1, 8, 28, 56, 70, 57, 31, 11, 2, 0, 1, 9, 36, 84, 126, 127, 88, 42, 13, 2, 1]