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.

A088564 a(n)=sum(i=0,n,binomial(2*i,i) (mod 3)).

Table of values

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

List of values

[1, 3, 3, 5, 6, 6, 6, 6, 6, 8, 9, 9, 10, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 14, 15, 15, 16, 18, 18, 18, 18, 18, 19, 21, 21, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24]