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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.

A071754 a(n) = Sum_{k=0..n} pp(k) where pp(k) is the parity of p(k) the k-th partition number = A040051(k).

Table of values

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

List of values

[1, 2, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 8, 9, 10, 10, 11, 12, 13, 13, 14, 14, 14, 15, 16, 16, 16, 16, 16, 17, 17, 17, 18, 19, 19, 20, 21, 22, 23, 24, 24, 25, 25, 26, 27, 27, 27, 27, 28, 29, 29, 30, 31, 32, 33, 33, 34, 34, 34, 34, 35, 36, 36, 37, 37, 37, 37, 38, 39, 40, 40, 41, 42, 43]

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