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.

A134521 Triangle read by rows: T(n,k) = binomial(n,k) + (n + k) mod 2.

Table of values

n a(n)
0 1
1 2
2 1
3 1
4 3
5 1
6 2
7 3
8 4
9 1
10 1
11 5
12 6
13 5
14 1
15 2
16 5
17 11
18 10
19 6
20 1
21 1
22 7
23 15
24 21
25 15
26 7
27 1
28 2
29 7
30 22
31 35
32 36
33 21
34 8
35 1
36 1
37 9
38 28
39 57
40 70
41 57
42 28
43 9
44 1
45 2
46 9
47 37
48 84
49 127
50 126
51 85
52 36
53 10
54 1
55 1
56 11
57 45
58 121
59 210
60 253
61 210
62 121
63 45
64 11
65 1
66 2
67 11
68 56
69 165
70 331
71 462
72 463
73 330
74 166
75 55
76 12
77 1

List of values

[1, 2, 1, 1, 3, 1, 2, 3, 4, 1, 1, 5, 6, 5, 1, 2, 5, 11, 10, 6, 1, 1, 7, 15, 21, 15, 7, 1, 2, 7, 22, 35, 36, 21, 8, 1, 1, 9, 28, 57, 70, 57, 28, 9, 1, 2, 9, 37, 84, 127, 126, 85, 36, 10, 1, 1, 11, 45, 121, 210, 253, 210, 121, 45, 11, 1, 2, 11, 56, 165, 331, 462, 463, 330, 166, 55, 12, 1]