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.

A249040 Number of even terms in first n terms of A249039.

Table of values

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

List of values

[0, 1, 2, 2, 2, 2, 3, 3, 4, 5, 6, 7, 7, 8, 9, 9, 9, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 12, 12, 13, 14, 14, 14, 15, 15, 16, 17, 18, 18, 19, 20, 21, 22, 23, 24, 24, 25, 26, 27, 28, 28, 29, 30, 30, 30, 31, 31, 32, 33, 34, 34, 35, 36, 36, 36, 37, 37, 37, 37, 38, 38, 39, 40, 40, 40, 41, 41]

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